diff --git a/pkg/sql/exec_util.go b/pkg/sql/exec_util.go
index 5a9e2ff8dc3e..5889431fea55 100644
--- a/pkg/sql/exec_util.go
+++ b/pkg/sql/exec_util.go
@@ -3321,6 +3321,10 @@ func (m *sessionDataMutator) SetUnconstrainedNonCoveringIndexScanEnabled(val boo
 	m.data.UnconstrainedNonCoveringIndexScanEnabled = val
 }
 
+func (m *sessionDataMutator) SetDisableHoistProjectionInJoinLimitation(val bool) {
+	m.data.DisableHoistProjectionInJoinLimitation = val
+}
+
 func (m *sessionDataMutator) SetTroubleshootingModeEnabled(val bool) {
 	m.data.TroubleshootingMode = val
 }
diff --git a/pkg/sql/logictest/testdata/logic_test/information_schema b/pkg/sql/logictest/testdata/logic_test/information_schema
index 5719b33cdf30..9f873f6f8918 100644
--- a/pkg/sql/logictest/testdata/logic_test/information_schema
+++ b/pkg/sql/logictest/testdata/logic_test/information_schema
@@ -4690,6 +4690,7 @@ default_transaction_quality_of_service                regular
 default_transaction_read_only                         off
 default_transaction_use_follower_reads                off
 default_with_oids                                     off
+disable_hoist_projection_in_join_limitation           off
 disable_partially_distributed_plans                   off
 disable_plan_gists                                    off
 disallow_full_table_scans                             off
diff --git a/pkg/sql/logictest/testdata/logic_test/pg_catalog b/pkg/sql/logictest/testdata/logic_test/pg_catalog
index 84c7d1614e05..549bea9ccc83 100644
--- a/pkg/sql/logictest/testdata/logic_test/pg_catalog
+++ b/pkg/sql/logictest/testdata/logic_test/pg_catalog
@@ -4173,6 +4173,7 @@ default_transaction_quality_of_service                regular             NULL
 default_transaction_read_only                         off                 NULL      NULL        NULL        string
 default_transaction_use_follower_reads                off                 NULL      NULL        NULL        string
 default_with_oids                                     off                 NULL      NULL        NULL        string
+disable_hoist_projection_in_join_limitation           off                 NULL      NULL        NULL        string
 disable_partially_distributed_plans                   off                 NULL      NULL        NULL        string
 disable_plan_gists                                    off                 NULL      NULL        NULL        string
 disallow_full_table_scans                             off                 NULL      NULL        NULL        string
@@ -4299,6 +4300,7 @@ default_transaction_quality_of_service                regular             NULL
 default_transaction_read_only                         off                 NULL  user     NULL      off                 off
 default_transaction_use_follower_reads                off                 NULL  user     NULL      off                 off
 default_with_oids                                     off                 NULL  user     NULL      off                 off
+disable_hoist_projection_in_join_limitation           off                 NULL  user     NULL      off                 off
 disable_partially_distributed_plans                   off                 NULL  user     NULL      off                 off
 disable_plan_gists                                    off                 NULL  user     NULL      off                 off
 disallow_full_table_scans                             off                 NULL  user     NULL      off                 off
@@ -4421,6 +4423,7 @@ default_transaction_quality_of_service                NULL    NULL     NULL
 default_transaction_read_only                         NULL    NULL     NULL     NULL        NULL
 default_transaction_use_follower_reads                NULL    NULL     NULL     NULL        NULL
 default_with_oids                                     NULL    NULL     NULL     NULL        NULL
+disable_hoist_projection_in_join_limitation           NULL    NULL     NULL     NULL        NULL
 disable_partially_distributed_plans                   NULL    NULL     NULL     NULL        NULL
 disable_plan_gists                                    NULL    NULL     NULL     NULL        NULL
 disallow_full_table_scans                             NULL    NULL     NULL     NULL        NULL
diff --git a/pkg/sql/logictest/testdata/logic_test/show_source b/pkg/sql/logictest/testdata/logic_test/show_source
index 7c961d6d4f5b..6764f90d3f45 100644
--- a/pkg/sql/logictest/testdata/logic_test/show_source
+++ b/pkg/sql/logictest/testdata/logic_test/show_source
@@ -46,6 +46,7 @@ default_transaction_quality_of_service                regular
 default_transaction_read_only                         off
 default_transaction_use_follower_reads                off
 default_with_oids                                     off
+disable_hoist_projection_in_join_limitation           off
 disable_partially_distributed_plans                   off
 disable_plan_gists                                    off
 disallow_full_table_scans                             off
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpcc b/pkg/sql/opt/memo/testdata/stats_quality/tpcc
index c522fec3dd32..9ad2e72d5658 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpcc
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpcc
@@ -15,7 +15,7 @@ import file=tpcc_stats_w10
 # reflect on-line database activity as typically found in production
 # environments.
 # --------------------------------------------------
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=new_order_01 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=new_order_01 ignore-tables=1
 SELECT w_tax FROM warehouse WHERE w_id = 1
 ----
 ----
@@ -46,7 +46,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=new_order_02 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=new_order_02 ignore-tables=1
 SELECT c_discount, c_last, c_credit
 FROM customer
 WHERE c_w_id = 1 AND c_d_id = 1 AND c_id = 50
@@ -87,7 +87,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=new_order_03
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=new_order_03
 SELECT i_price, i_name, i_data
 FROM item
 WHERE i_id IN (125, 150, 175, 200, 25, 50, 75, 100, 225, 250, 275, 300)
@@ -131,7 +131,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=new_order_04 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=new_order_04 ignore-tables=1
 SELECT s_quantity, s_ytd, s_order_cnt, s_remote_cnt, s_data, s_dist_05
 FROM stock
 WHERE (s_i_id, s_w_id) IN ((1000, 4), (900, 4), (1100, 4), (1500, 4), (1400, 4))
@@ -193,7 +193,7 @@ column_names    row_count_est  row_count_err  distinct_count_est  distinct_count
 # stringent response time requirements to satisfy on-line users. In addition,
 # this transaction includes non-primary key access to the CUSTOMER table.
 # --------------------------------------------------
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=payment_01 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=payment_01 ignore-tables=1
 SELECT c_id
 FROM customer
 WHERE c_w_id = 1 AND c_d_id = 1 AND c_last = 'ANTIABLEABLE'
@@ -248,7 +248,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 # users. In addition, this table includes non-primary key access to the
 # CUSTOMER table.
 # --------------------------------------------------
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=order_status_01 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=order_status_01 ignore-tables=1
 SELECT c_balance, c_first, c_middle, c_last
 FROM customer
 WHERE c_w_id = 1 AND c_d_id = 1 AND c_id = 50
@@ -291,7 +291,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=order_status_02 ignore-tables=(1,3)
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=order_status_02 ignore-tables=(1,3)
 SELECT c_id, c_balance, c_first, c_middle
 FROM customer
 WHERE c_w_id = 2 AND c_d_id = 2 AND c_last = 'ANTIBARESE'
@@ -358,7 +358,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=order_status_03 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=order_status_03 ignore-tables=1
 SELECT o_id, o_entry_d, o_carrier_id
 FROM "order"
 WHERE o_w_id = 4 AND o_d_id = 3 AND o_c_id = 10
@@ -401,7 +401,7 @@ column_names    row_count_est  row_count_err  distinct_count_est  distinct_count
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=order_status_04 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=order_status_04 ignore-tables=1
 SELECT ol_i_id, ol_supply_w_id, ol_quantity, ol_amount, ol_delivery_d
 FROM order_line
 WHERE ol_w_id = 1 AND ol_d_id = 1 AND ol_o_id = 1000
@@ -463,7 +463,7 @@ column_names      row_count_est  row_count_err  distinct_count_est  distinct_cou
 # indicating transaction completion. The result of the deferred execution is
 # recorded into a result file.
 # --------------------------------------------------
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=delivery_01 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=delivery_01 ignore-tables=1
 SELECT no_o_id
 FROM new_order
 WHERE no_w_id = 7 AND no_d_id = 6
@@ -500,7 +500,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=delivery_02
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=delivery_02
 SELECT sum(ol_amount)
 FROM order_line
 WHERE ol_w_id = 8 AND ol_d_id = 6 AND ol_o_id = 1000
@@ -559,7 +559,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 # heavy read-only database transaction with a low frequency of execution, a
 # relaxed response time requirement, and relaxed consistency requirements.
 # --------------------------------------------------
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=stock_level_01 ignore-tables=1
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=stock_level_01 ignore-tables=1
 SELECT d_next_o_id
 FROM district
 WHERE d_w_id = 4 AND d_id = 9
@@ -594,7 +594,7 @@ column_names   row_count_est  row_count_err  distinct_count_est  distinct_count_
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=stock_level_02
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=stock_level_02
 SELECT count(DISTINCT s_i_id)
 FROM order_line
 JOIN stock
@@ -697,7 +697,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 # These queries run after TPCC in order to check database consistency.
 # They are not part of the benchmark itself.
 # --------------------------------------------------
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_01
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_01
 SELECT count(*)
 FROM warehouse
 FULL OUTER JOIN
@@ -812,7 +812,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_02
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_02
 SELECT d_next_o_id
 FROM district
 ORDER BY d_w_id, d_id
@@ -845,7 +845,7 @@ column_names   row_count_est  row_count_err  distinct_count_est  distinct_count_
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_03
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_03
 SELECT max(no_o_id)
 FROM new_order
 GROUP BY no_d_id, no_w_id
@@ -900,7 +900,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_04
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_04
 SELECT max(o_id)
 FROM "order"
 GROUP BY o_d_id, o_w_id
@@ -955,7 +955,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_05
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_05
 SELECT count(*)
 FROM
 (
@@ -1062,7 +1062,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_06
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_06
 SELECT sum(o_ol_cnt)
 FROM "order"
 GROUP BY o_w_id, o_d_id
@@ -1116,7 +1116,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_07
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_07
 SELECT count(*)
 FROM order_line
 GROUP BY ol_w_id, ol_d_id
@@ -1165,7 +1165,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_08
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_08
 (SELECT no_w_id, no_d_id, no_o_id FROM new_order)
 EXCEPT ALL
 (SELECT o_w_id, o_d_id, o_id FROM "order" WHERE o_carrier_id IS NULL)
@@ -1280,7 +1280,7 @@ column_names    row_count_est  row_count_err  distinct_count_est  distinct_count
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_09
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_09
 (SELECT o_w_id, o_d_id, o_id FROM "order" WHERE o_carrier_id IS NULL)
 EXCEPT ALL
 (SELECT no_w_id, no_d_id, no_o_id FROM new_order)
@@ -1395,7 +1395,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_10
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_10
 (
     SELECT o_w_id, o_d_id, o_id, o_ol_cnt
     FROM "order"
@@ -1508,7 +1508,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality format=hide-qual database=tpcc stats-quality-prefix=consistency_11
+stats-quality format=hide-qual database=tpcc set=save_tables_prefix=consistency_11
 (
     SELECT ol_w_id, ol_d_id, ol_o_id, count(*)
     FROM order_line
@@ -1621,7 +1621,7 @@ column_names  row_count_est  row_count_err  distinct_count_est  distinct_count_e
 ----
 ----
 
-stats-quality database=tpcc stats-quality-prefix=consistency_12
+stats-quality database=tpcc set=save_tables_prefix=consistency_12
 SELECT count(*)
 FROM
 (
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q01 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q01
index 20baaf61b1e4..8f124959aafe 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q01
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q01
@@ -17,7 +17,7 @@ import file=tpch_stats
 # LINESTATUS, and listed in ascending order of RETURNFLAG and LINESTATUS. A
 # count of the number of lineitems in each group is included.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q1
+stats-quality database=tpch set=save_tables_prefix=q1
 SELECT
     l_returnflag,
     l_linestatus,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q02 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q02
index 878a9f5690a2..34aaefcca64e 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q02
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q02
@@ -22,7 +22,7 @@ import file=tpch_stats
 #   1. Allow Select to be pushed below Ordinality used to add key column
 #   2. Add decorrelation rule for Ordinality/RowKey
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q2
+stats-quality database=tpch set=save_tables_prefix=q2
 SELECT
     s_acctbal,
     s_name,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q03 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q03
index ef33e14c15b1..c81d77b23103 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q03
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q03
@@ -15,7 +15,7 @@ import file=tpch_stats
 # decreasing order of revenue. If more than 10 unshipped orders exist, only the
 # 10 orders with the largest revenue are listed.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q3
+stats-quality database=tpch set=save_tables_prefix=q3
 SELECT
     l_orderkey,
     sum(l_extendedprice * (1 - l_discount)) AS revenue,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q04 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q04
index 033bc7047e7d..bd16eb3c6427 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q04
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q04
@@ -15,7 +15,7 @@ import file=tpch_stats
 # committed date. The query lists the count of such orders for each order
 # priority sorted in ascending priority order.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q4
+stats-quality database=tpch set=save_tables_prefix=q4
 SELECT
     o_orderpriority,
     count(*) AS order_count
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q05 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q05
index 4c8080c86f95..c0253301079c 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q05
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q05
@@ -18,7 +18,7 @@ import file=tpch_stats
 # all qualifying lineitems in a particular nation is defined as
 # sum(l_extendedprice * (1 - l_discount)).
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q5
+stats-quality database=tpch set=save_tables_prefix=q5
 SELECT
     n_name,
     sum(l_extendedprice * (1 - l_discount)) AS revenue
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q06 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q06
index 84ff69a4021c..53f82b75b4c2 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q06
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q06
@@ -19,7 +19,7 @@ import file=tpch_stats
 # increase is equal to the sum of [l_extendedprice * l_discount] for all
 # lineitems with discounts and quantities in the qualifying range.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q6
+stats-quality database=tpch set=save_tables_prefix=q6
 SELECT
     sum(l_extendedprice * l_discount) AS revenue
 FROM
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q07 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q07
index 9c287bdabec7..5aadac10ecee 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q07
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q07
@@ -17,7 +17,7 @@ import file=tpch_stats
 # that took place in that year. The query orders the answer by Supplier nation,
 # Customer nation, and year (all ascending).
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q7
+stats-quality database=tpch set=save_tables_prefix=q7
 SELECT
     supp_nation,
     cust_nation,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q08 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q08
index 4db72cef5a94..77cdd560427e 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q08
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q08
@@ -16,7 +16,7 @@ import file=tpch_stats
 # from the given nation. The query determines this for the years 1995 and 1996
 # presented in this order.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q8
+stats-quality database=tpch set=save_tables_prefix=q8
 SELECT
     o_year,
     sum(CASE
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q09 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q09
index 20ef0f923370..37a5a3e10270 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q09
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q09
@@ -20,7 +20,7 @@ import file=tpch_stats
 #  nations in ascending alphabetical order and, for each nation, the year and
 #  profit in descending order by year (most recent first).
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q9
+stats-quality database=tpch set=save_tables_prefix=q9
 SELECT
     nation,
     o_year,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q10 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q10
index f75cc1f376e5..7d62fb950063 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q10
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q10
@@ -18,7 +18,7 @@ import file=tpch_stats
 # Revenue lost is defined as sum(l_extendedprice*(1-l_discount)) for all
 # qualifying lineitems.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q10
+stats-quality database=tpch set=save_tables_prefix=q10
 SELECT
     c_custkey,
     c_name,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q11 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q11
index 7d533b7832ea..2803bfc6e52a 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q11
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q11
@@ -14,7 +14,7 @@ import file=tpch_stats
 # available parts. The query displays the part number and the value of those
 # parts in descending order of value.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q11
+stats-quality database=tpch set=save_tables_prefix=q11
 SELECT
     ps_partkey,
     sum(ps_supplycost * ps_availqty::float) AS value
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q12 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q12
index 5a7f5b86e977..47b71c4505e2 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q12
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q12
@@ -18,7 +18,7 @@ import file=tpch_stats
 # The late lineitems are partitioned into two groups, those with priority URGENT
 # or HIGH, and those with a priority other than URGENT or HIGH.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q12
+stats-quality database=tpch set=save_tables_prefix=q12
 SELECT
     l_shipmode,
     sum(CASE
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q13 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q13
index bb08251a2b82..0df26ecd0e65 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q13
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q13
@@ -15,7 +15,7 @@ import file=tpch_stats
 # several special categories of orders. Special categories are identified in the
 # order comment column by looking for a particular pattern.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q13
+stats-quality database=tpch set=save_tables_prefix=q13
 SELECT
     c_count, count(*) AS custdist
 FROM (
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q14 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q14
index c273a8e7702a..c08c50af7cb7 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q14
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q14
@@ -15,7 +15,7 @@ import file=tpch_stats
 # shipped in that month and gives the percentage. Revenue is defined as
 # (l_extendedprice * (1-l_discount)).
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q14
+stats-quality database=tpch set=save_tables_prefix=q14
 SELECT
     100.00 * sum(CASE
         WHEN p_type LIKE 'PROMO%'
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q15 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q15
index dde14d716e23..300610f61813 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q15
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q15
@@ -29,7 +29,7 @@ CREATE VIEW revenue0 (supplier_no, total_revenue) AS
         l_suppkey;
 ----
 
-stats-quality database=tpch stats-quality-prefix=q15
+stats-quality database=tpch set=save_tables_prefix=q15
 SELECT
     s_suppkey,
     s_name,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q16 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q16
index a864c0329ccb..d82c83af1704 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q16
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q16
@@ -18,7 +18,7 @@ import file=tpch_stats
 # Business Bureau. Results must be presented in descending count and ascending
 # brand, type, and size.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q16
+stats-quality database=tpch set=save_tables_prefix=q16
 SELECT
     p_brand,
     p_type,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q17 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q17
index 2fd309ac23cc..9fd0d5597f81 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q17
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q17
@@ -20,7 +20,7 @@ import file=tpch_stats
 # TODO:
 #   1. Allow Select to be pushed below Ordinality used to add key column
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q17
+stats-quality database=tpch set=save_tables_prefix=q17
 SELECT
     sum(l_extendedprice) / 7.0 AS avg_yearly
 FROM
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q18 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q18
index 91faff3f150b..47f9c2801495 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q18
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q18
@@ -15,7 +15,7 @@ import file=tpch_stats
 # orders. The query lists the customer name, customer key, the order key, date
 # and total price and the quantity for the order.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q18
+stats-quality database=tpch set=save_tables_prefix=q18
 SELECT
     c_name,
     c_custkey,
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q19 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q19
index 81eb9957b874..b3f6b29d1b1f 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q19
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q19
@@ -16,7 +16,7 @@ import file=tpch_stats
 # person. Parts are selected based on the combination of specific brands, a list
 # of containers, and a range of sizes.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q19
+stats-quality database=tpch set=save_tables_prefix=q19
 SELECT
     sum(l_extendedprice* (1 - l_discount)) AS revenue
 FROM
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q20 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q20
index 807a5eec232c..8f6b6f87e551 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q20
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q20
@@ -18,7 +18,7 @@ import file=tpch_stats
 # TODO:
 #   1. Push 'forest%' prefix filter down into Scan
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q20
+stats-quality database=tpch set=save_tables_prefix=q20
 SELECT
     s_name,
     s_address
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q21 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q21
index 56930f3adbfa..95cd1eb7e6da 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q21
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q21
@@ -14,7 +14,7 @@ import file=tpch_stats
 # supplier order (with current status of 'F') where they were the only supplier
 # who failed to meet the committed delivery date.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q21
+stats-quality database=tpch set=save_tables_prefix=q21
 SELECT
     s_name,
     count(*) AS numwait
diff --git a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q22 b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q22
index e1af99e17b8e..47b71a8fdb7b 100644
--- a/pkg/sql/opt/memo/testdata/stats_quality/tpch/q22
+++ b/pkg/sql/opt/memo/testdata/stats_quality/tpch/q22
@@ -15,7 +15,7 @@ import file=tpch_stats
 # “positive” account balance. It also reflects the magnitude of that balance.
 # Country code is defined as the first two characters of c_phone.
 # --------------------------------------------------
-stats-quality database=tpch stats-quality-prefix=q22
+stats-quality database=tpch set=save_tables_prefix=q22
 SELECT
     cntrycode,
     count(*) AS numcust,
diff --git a/pkg/sql/opt/norm/testdata/rules/ordering b/pkg/sql/opt/norm/testdata/rules/ordering
index 2a602c4202d6..02112e815b80 100644
--- a/pkg/sql/opt/norm/testdata/rules/ordering
+++ b/pkg/sql/opt/norm/testdata/rules/ordering
@@ -246,7 +246,7 @@ project
 # --------------------------------------------------
 # SimplifyWithBindingOrdering
 # --------------------------------------------------
-norm propagate-input-ordering expect=SimplifyWithBindingOrdering
+norm set=propagate_input_ordering=true expect=SimplifyWithBindingOrdering
 WITH cte AS (SELECT a, b FROM abcde ORDER BY a, b, c)
 SELECT * FROM cte, xyz
 ----
@@ -277,7 +277,7 @@ with &1 (cte)
       │    └── fd: (10)-->(11,12)
       └── filters (true)
 
-norm propagate-input-ordering expect=SimplifyWithBindingOrdering
+norm set=propagate_input_ordering=true expect=SimplifyWithBindingOrdering
 WITH cte AS (SELECT d, 1 AS one, e FROM abcde ORDER BY d, one, e)
 SELECT * FROM cte
 ----
diff --git a/pkg/sql/opt/optbuilder/testdata/fk-checks-delete b/pkg/sql/opt/optbuilder/testdata/fk-checks-delete
index dde80065ff05..324fa0c55a6c 100644
--- a/pkg/sql/opt/optbuilder/testdata/fk-checks-delete
+++ b/pkg/sql/opt/optbuilder/testdata/fk-checks-delete
@@ -140,7 +140,7 @@ delete doublechild
            └── p1:7 = 10
 
 # Verify that the join hint is set.
-build prefer-lookup-joins-for-fks
+build set=prefer_lookup_joins_for_fks=true
 DELETE FROM parent WHERE p = 3
 ----
 delete parent
diff --git a/pkg/sql/opt/optbuilder/testdata/fk-checks-insert b/pkg/sql/opt/optbuilder/testdata/fk-checks-insert
index a6e0c5961e91..6abb42dc9f79 100644
--- a/pkg/sql/opt/optbuilder/testdata/fk-checks-insert
+++ b/pkg/sql/opt/optbuilder/testdata/fk-checks-insert
@@ -657,7 +657,7 @@ insert multi_ref_child
       └── (1, NULL, NULL, NULL)
 
 # Verify that the join hint is set.
-build prefer-lookup-joins-for-fks
+build set=prefer_lookup_joins_for_fks=true
 INSERT INTO child VALUES (100, 1), (200, 1)
 ----
 insert child
diff --git a/pkg/sql/opt/optbuilder/testdata/fk-checks-update b/pkg/sql/opt/optbuilder/testdata/fk-checks-update
index 229d11bd385f..34248f2f540c 100644
--- a/pkg/sql/opt/optbuilder/testdata/fk-checks-update
+++ b/pkg/sql/opt/optbuilder/testdata/fk-checks-update
@@ -541,7 +541,7 @@ update fam
                      └── d:19 = two.b:21
 
 # Verify that the join hint is set.
-build prefer-lookup-joins-for-fks
+build set=prefer_lookup_joins_for_fks=true
 UPDATE child SET p = 4
 ----
 update child
diff --git a/pkg/sql/opt/optbuilder/testdata/orderby b/pkg/sql/opt/optbuilder/testdata/orderby
index bd394125cfbe..29216a9b64d2 100644
--- a/pkg/sql/opt/optbuilder/testdata/orderby
+++ b/pkg/sql/opt/optbuilder/testdata/orderby
@@ -1091,7 +1091,7 @@ sort
 
 # Try NULLS ordered last.
 # Next two plans should be the same.
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT a, b FROM abcd ORDER BY b, c
 ----
 sort
@@ -1105,7 +1105,7 @@ sort
            ├── b:2 IS NULL [as=nulls_ordering_b:7]
            └── c:3 IS NULL [as=nulls_ordering_c:8]
 
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT a, b FROM abcd ORDER BY b, c NULLS LAST
 ----
 sort
@@ -1120,7 +1120,7 @@ sort
            └── c:3 IS NULL [as=nulls_ordering_c:8]
 
 # Should be different from the plan above (1 null re-ordering).
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT a, b FROM abcd ORDER BY b NULLS FIRST, c
 ----
 sort
@@ -1134,7 +1134,7 @@ sort
            └── c:3 IS NULL [as=nulls_ordering_c:7]
 
 # Should be different from the two plans above (2 null re-orderings).
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT a, b FROM abcd ORDER BY b NULLS FIRST, c DESC NULLS LAST
 ----
 sort
@@ -1218,7 +1218,7 @@ sort
 
 # Try with NULL ordered last.
 # Next two plans should be the same.
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT * FROM abcd ORDER BY b DESC
 ----
 sort
@@ -1231,7 +1231,7 @@ sort
       └── projections
            └── b:2 IS NULL [as=nulls_ordering_b:7]
 
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT * FROM abcd ORDER BY b DESC NULLS FIRST
 ----
 sort
@@ -1245,7 +1245,7 @@ sort
            └── b:2 IS NULL [as=nulls_ordering_b:7]
 
 # Should be different from the plan above (1 null re-ordering).
-build null-ordered-last
+build set=null_ordered_last=true
 SELECT * FROM abcd ORDER BY b DESC NULLS LAST
 ----
 sort
diff --git a/pkg/sql/opt/optbuilder/testdata/propagate-input-ordering b/pkg/sql/opt/optbuilder/testdata/propagate-input-ordering
index 47c75ef8db45..90b24db52639 100644
--- a/pkg/sql/opt/optbuilder/testdata/propagate-input-ordering
+++ b/pkg/sql/opt/optbuilder/testdata/propagate-input-ordering
@@ -8,7 +8,7 @@ exec-ddl
 CREATE TABLE xy (x int, y int);
 ----
 
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 SELECT * FROM
   (SELECT * FROM generate_series(1, 10) i ORDER BY i % 5 ASC, i ASC)
 ----
@@ -26,7 +26,7 @@ sort
       └── projections
            └── generate_series:1 % 5 [as=column2:2]
 
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 WITH tmp AS (SELECT * FROM generate_series(1, 10) i ORDER BY i % 5 ASC, i ASC) SELECT * FROM tmp;
 ----
 with &1 (tmp)
@@ -51,7 +51,7 @@ with &1 (tmp)
            └──  generate_series:1 => i:3
 
 # The internal ordering column for i%5 should not be present in the output.
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 SELECT foo FROM (SELECT i, i%2 FROM generate_series(1, 10) i ORDER BY i % 5 ASC, i ASC) AS foo
 ----
 sort
@@ -74,7 +74,7 @@ sort
            └── ((generate_series:1, "?column?":2) AS i, "?column?") [as=foo:4]
 
 # The internal ordering column for i%5 should not be present in the output.
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 SELECT foo.* FROM (SELECT i, i%2 FROM generate_series(1, 10) i ORDER BY i % 5 ASC, i ASC) AS foo
 ----
 sort
@@ -93,7 +93,7 @@ sort
            └── generate_series:1 % 5 [as=column3:3]
 
 # The subquery ordering is propagated to the aggregation.
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 SELECT array_agg(i) FROM (SELECT * FROM generate_series(1, 5) i ORDER BY i%2 DESC, i)
 ----
 scalar-group-by
@@ -117,7 +117,7 @@ scalar-group-by
            └── generate_series:1
 
 # The input ordering is not propagated through joins.
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 SELECT *
 FROM (SELECT * FROM generate_series(1, 2) x) tmp,
      (SELECT * FROM generate_series(8, 12) i ORDER BY i % 5 ASC, i ASC) tmp2;
@@ -144,7 +144,7 @@ inner-join (cross)
 
 # Do not preserve the subquery ordering because the parent scope has its own
 # ordering.
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 SELECT * FROM
   (SELECT * FROM generate_series(1, 10) i ORDER BY i % 5 ASC, i ASC)
 ORDER BY i DESC;
@@ -166,7 +166,7 @@ sort
                 └── generate_series:1 % 5 [as=column2:2]
 
 # CTEs get materialized in the desired order. 
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 WITH
   cte1 AS (SELECT b FROM ab ORDER BY a, b),
   cte2 AS (SELECT y FROM xy ORDER BY x, y)
@@ -205,7 +205,7 @@ with &1 (cte1)
                 └── mapping:
                      └──  xy.y:7 => y:12
 
-build propagate-input-ordering
+build set=propagate_input_ordering=true
 WITH
   cte1 AS (SELECT b FROM ab),
   cte2 AS (SELECT DISTINCT ON (x) y FROM xy ORDER BY x, y)
diff --git a/pkg/sql/opt/testutils/opttester/BUILD.bazel b/pkg/sql/opt/testutils/opttester/BUILD.bazel
index 7996f157ae96..2e648149c730 100644
--- a/pkg/sql/opt/testutils/opttester/BUILD.bazel
+++ b/pkg/sql/opt/testutils/opttester/BUILD.bazel
@@ -22,6 +22,7 @@ go_library(
         "//pkg/roachpb",
         "//pkg/security/username",
         "//pkg/settings/cluster",
+        "//pkg/sql",
         "//pkg/sql/catalog/descpb",
         "//pkg/sql/catalog/schemaexpr",
         "//pkg/sql/opt",
diff --git a/pkg/sql/opt/testutils/opttester/opt_tester.go b/pkg/sql/opt/testutils/opttester/opt_tester.go
index f77dff312e18..4bdb4b9e68e3 100644
--- a/pkg/sql/opt/testutils/opttester/opt_tester.go
+++ b/pkg/sql/opt/testutils/opttester/opt_tester.go
@@ -38,6 +38,7 @@ import (
 	"github.com/cockroachdb/cockroach/pkg/roachpb"
 	"github.com/cockroachdb/cockroach/pkg/security/username"
 	"github.com/cockroachdb/cockroach/pkg/settings/cluster"
+	"github.com/cockroachdb/cockroach/pkg/sql"
 	"github.com/cockroachdb/cockroach/pkg/sql/catalog/descpb"
 	"github.com/cockroachdb/cockroach/pkg/sql/catalog/schemaexpr"
 	"github.com/cockroachdb/cockroach/pkg/sql/opt"
@@ -134,6 +135,10 @@ type OptTester struct {
 // Flags are control knobs for tests. Note that specific testcases can
 // override these defaults.
 type Flags struct {
+	ctx context.Context
+
+	evalCtx eval.Context
+
 	// ExprFormat controls the output detail of build / opt/ optsteps command
 	// directives.
 	ExprFormat memo.ExprFmtFlags
@@ -179,21 +184,10 @@ type Flags struct {
 	// the coster will be in the range [c - 0.5 * c, c + 0.5 * c).
 	PerturbCost float64
 
-	// JoinLimit is the default value for SessionData.ReorderJoinsLimit.
-	JoinLimit int
-
 	// PreferLookupJoinsForFK is the default value for
 	// SessionData.PreferLookupJoinsForFKs.
 	PreferLookupJoinsForFKs bool
 
-	// PropagateInputOrdering is the default value for
-	// SessionData.PropagateInputOrdering.
-	PropagateInputOrdering bool
-
-	// NullOrderedLast is the default value for
-	// SessionData.NullOrderedLast.
-	NullOrderedLast bool
-
 	// Locality specifies the location of the planning node as a set of user-
 	// defined key/value pairs, ordered from most inclusive to least inclusive.
 	// If there are no tiers, then the node's location is not known. Examples:
@@ -211,10 +205,6 @@ type Flags struct {
 	// only used by the inject-stats commands.
 	Table string
 
-	// SaveTablesPrefix specifies the prefix of the table to create or print
-	// for each subexpression in the query.
-	SaveTablesPrefix string
-
 	// IgnoreTables specifies the subset of stats tables which should not be
 	// outputted by the stats-quality command.
 	IgnoreTables util.FastIntSet
@@ -257,10 +247,6 @@ type Flags struct {
 	// QueryArgs are values for placeholders, used for assign-placeholders-*.
 	QueryArgs []string
 
-	// UseMultiColStats is the value for SessionData.OptimizerUseMultiColStats.
-	// It defaults to true in New.
-	UseMultiColStats bool
-
 	// SkipRace indicates that a test should be skipped if the race detector is
 	// enabled.
 	SkipRace bool
@@ -271,13 +257,16 @@ type Flags struct {
 func New(catalog cat.Catalog, sql string) *OptTester {
 	ctx := context.Background()
 	ot := &OptTester{
-		Flags:   Flags{JoinLimit: opt.DefaultJoinOrderLimit, UseMultiColStats: true},
 		catalog: catalog,
 		sql:     sql,
 		ctx:     ctx,
 		semaCtx: tree.MakeSemaContext(),
 		evalCtx: eval.MakeTestingEvalContext(cluster.MakeTestingClusterSettings()),
 	}
+	ot.evalCtx.SessionData().ReorderJoinsLimit = opt.DefaultJoinOrderLimit
+	ot.evalCtx.SessionData().OptimizerUseMultiColStats = true
+	ot.Flags.ctx = ot.ctx
+	ot.Flags.evalCtx = ot.evalCtx
 	ot.semaCtx.SearchPath = tree.EmptySearchPath
 	ot.semaCtx.FunctionResolver = ot.catalog
 	// To allow opttester tests to use now(), we hardcode a preset transaction
@@ -507,16 +496,6 @@ func New(catalog cat.Catalog, sql string) *OptTester {
 //     - import: the file path is relative to opttester/testfixtures;
 //     - inject-stats: the file path is relative to the test file.
 //
-//  - join-limit: sets the value for SessionData.ReorderJoinsLimit, which
-//    indicates the number of joins at which the optimizer should stop
-//    attempting to reorder.
-//
-//  - prefer-lookup-joins-for-fks: sets SessionData.PreferLookupJoinsForFKs to
-//    true, causing foreign key operations to prefer lookup joins.
-//
-//  - null-ordered-last: sets SessionData.NullOrderedLast to true, which orders
-//    NULL values last in ascending order.
-//
 //  - cascade-levels: used to limit the depth of recursive cascades for
 //    build-cascades.
 //
@@ -537,13 +516,13 @@ func New(catalog cat.Catalog, sql string) *OptTester {
 //  - memo-cycles: used with memo to search the memo for cycles and output a
 //    path with a cycle if one is found.
 //
-//  - use-multi-col-stats: sets the value for
-//    SessionData.OptimizerUseMultiColStats which indicates whether or not
-//    multi-column statistics are used for cardinality estimation in the
-//    optimizer. This option requires a single boolean argument.
-//
 //  - skip-race: skips the test if the race detector is enabled.
 //
+//  - set: sets the session setting for the given SQL statement, for example:
+//         build set=prefer_lookup_joins_for_fks=true
+//         DELETE FROM parent WHERE p = 3
+//         ----
+//
 func (ot *OptTester) RunCommand(tb testing.TB, d *datadriven.TestData) string {
 	// Allow testcases to override the flags.
 	for _, a := range d.CmdArgs {
@@ -561,15 +540,8 @@ func (ot *OptTester) RunCommand(tb testing.TB, d *datadriven.TestData) string {
 
 	ot.semaCtx.Placeholders = tree.PlaceholderInfo{}
 
-	ot.evalCtx.SessionData().ReorderJoinsLimit = int64(ot.Flags.JoinLimit)
-	ot.evalCtx.SessionData().PreferLookupJoinsForFKs = ot.Flags.PreferLookupJoinsForFKs
-	ot.evalCtx.SessionData().PropagateInputOrdering = ot.Flags.PropagateInputOrdering
-	ot.evalCtx.SessionData().NullOrderedLast = ot.Flags.NullOrderedLast
-	ot.evalCtx.SessionData().OptimizerUseMultiColStats = ot.Flags.UseMultiColStats
-
 	ot.evalCtx.TestingKnobs.OptimizerCostPerturbation = ot.Flags.PerturbCost
 	ot.evalCtx.Locality = ot.Flags.Locality
-	ot.evalCtx.SessionData().SaveTablesPrefix = ot.Flags.SaveTablesPrefix
 	ot.evalCtx.Placeholders = nil
 
 	switch d.Cmd {
@@ -896,6 +868,18 @@ func ruleNamesToRuleSet(args []string) (RuleSet, error) {
 // See OptTester.RunCommand for supported flags.
 func (f *Flags) Set(arg datadriven.CmdArg) error {
 	switch arg.Key {
+	case "set":
+		for _, val := range arg.Vals {
+			s := strings.Split(val, "=")
+			if len(s) != 2 {
+				return errors.Errorf("Expected both session variable name and value for set flag")
+			}
+			err := sql.SetSessionVariable(f.ctx, f.evalCtx, s[0], s[1])
+			if err != nil {
+				return err
+			}
+		}
+
 	case "format":
 		if len(arg.Vals) == 0 {
 			return fmt.Errorf("format flag requires value(s)")
@@ -936,28 +920,6 @@ func (f *Flags) Set(arg datadriven.CmdArg) error {
 			f.DisableRules.Add(int(r))
 		}
 
-	case "join-limit":
-		if len(arg.Vals) != 1 {
-			return fmt.Errorf("join-limit requires a single argument")
-		}
-		limit, err := strconv.ParseInt(arg.Vals[0], 10, 64)
-		if err != nil {
-			return errors.Wrap(err, "join-limit")
-		}
-		f.JoinLimit = int(limit)
-
-	case "prefer-lookup-joins-for-fks":
-		if len(arg.Vals) > 0 {
-			return fmt.Errorf("unknown vals for prefer-lookup-joins-for-fks")
-		}
-		f.PreferLookupJoinsForFKs = true
-
-	case "null-ordered-last":
-		if len(arg.Vals) > 0 {
-			return fmt.Errorf("unknown vals for null-ordered-last")
-		}
-		f.NullOrderedLast = true
-
 	case "rule":
 		if len(arg.Vals) != 1 {
 			return fmt.Errorf("rule requires one argument")
@@ -1029,12 +991,6 @@ func (f *Flags) Set(arg datadriven.CmdArg) error {
 		}
 		f.Table = arg.Vals[0]
 
-	case "stats-quality-prefix":
-		if len(arg.Vals) != 1 {
-			return fmt.Errorf("stats-quality-prefix requires one argument")
-		}
-		f.SaveTablesPrefix = arg.Vals[0]
-
 	case "ignore-tables":
 		var tables util.FastIntSet
 		addTables := func(val string) error {
@@ -1119,19 +1075,6 @@ func (f *Flags) Set(arg datadriven.CmdArg) error {
 	case "query-args":
 		f.QueryArgs = arg.Vals
 
-	case "propagate-input-ordering":
-		f.PropagateInputOrdering = true
-
-	case "use-multi-col-stats":
-		if len(arg.Vals) != 1 {
-			return fmt.Errorf("use-multi-col-stats requires a single argument")
-		}
-		b, err := strconv.ParseBool(arg.Vals[0])
-		if err != nil {
-			return errors.Wrap(err, "use-multi-col-stats")
-		}
-		f.UseMultiColStats = b
-
 	case "memo-cycles":
 		f.MemoFormat = xform.FmtCycle
 
@@ -1906,7 +1849,7 @@ func (ot *OptTester) StatsQuality(tb testing.TB, d *datadriven.TestData) (string
 	// tree. Keep track of the name of each table so that stats can be outputted
 	// later.
 	var names []string
-	nameGen := memo.NewExprNameGenerator(ot.Flags.SaveTablesPrefix)
+	nameGen := memo.NewExprNameGenerator(ot.evalCtx.SessionData().SaveTablesPrefix)
 	var traverse func(e opt.Expr) error
 	traverse = func(e opt.Expr) error {
 		if r, ok := e.(memo.RelExpr); ok {
@@ -2002,7 +1945,7 @@ func (ot *OptTester) saveActualTables() error {
 	}
 
 	if _, err := c.ExecContext(ctx,
-		fmt.Sprintf("SET save_tables_prefix = '%s'", ot.Flags.SaveTablesPrefix),
+		fmt.Sprintf("SET save_tables_prefix = '%s'", ot.evalCtx.SessionData().SaveTablesPrefix),
 	); err != nil {
 		return err
 	}
diff --git a/pkg/sql/opt/testutils/opttester/testdata/explore-trace b/pkg/sql/opt/testutils/opttester/testdata/explore-trace
index d44a8ef4be10..7497be623f23 100644
--- a/pkg/sql/opt/testutils/opttester/testdata/explore-trace
+++ b/pkg/sql/opt/testutils/opttester/testdata/explore-trace
@@ -125,7 +125,7 @@ CREATE TABLE grandchild (
 ----
 
 # Regression test for 36225.
-exploretrace join-limit=3 rule=ReorderJoins skip-no-op format=hide-all
+exploretrace set=reorder_joins_limit=3 rule=ReorderJoins skip-no-op format=hide-all
 SELECT * FROM
   grandchild
   JOIN child USING (pid, cid)
diff --git a/pkg/sql/opt/testutils/opttester/testdata/use-multi-col-stats b/pkg/sql/opt/testutils/opttester/testdata/use-multi-col-stats
index 4f9c79b52bc8..2a2c68b5a38a 100644
--- a/pkg/sql/opt/testutils/opttester/testdata/use-multi-col-stats
+++ b/pkg/sql/opt/testutils/opttester/testdata/use-multi-col-stats
@@ -21,7 +21,7 @@ CREATE TABLE rides (
 inject-stats file=inject-stats.json table=rides
 ----
 
-opt format=show-stats use-multi-col-stats=true
+opt format=show-stats set=optimizer_use_multicol_stats=true
 SELECT * FROM rides WHERE city = 'rome' and id = '17198184-b24f-4aa8-9933-64a72ff6665f'
 ----
 scan rides
@@ -32,7 +32,7 @@ scan rides
  ├── key: ()
  └── fd: ()-->(1-10)
 
-opt format=show-stats use-multi-col-stats=false
+opt format=show-stats set=optimizer_use_multicol_stats=false
 SELECT * FROM rides WHERE city = 'rome' and id = '17198184-b24f-4aa8-9933-64a72ff6665f'
 ----
 scan rides
diff --git a/pkg/sql/opt/xform/join_funcs.go b/pkg/sql/opt/xform/join_funcs.go
index 92790099449d..70b057988347 100644
--- a/pkg/sql/opt/xform/join_funcs.go
+++ b/pkg/sql/opt/xform/join_funcs.go
@@ -1679,9 +1679,15 @@ func (c *CustomFuncs) getfilteredCanonicalScan(
 	return scanExpr, filters, true
 }
 
-// IsCanonicalScanOrSelect returns true if `relation` is a canonical scan or a
-// select from a canonical scan.
-func (c *CustomFuncs) IsCanonicalScanOrSelect(relation memo.RelExpr) (ok bool) {
+// CanHoistProjectInput returns true if a projection of an expression on
+// `relation` is allowed to be hoisted above a parent Join. The preconditions
+// for this are if `relation` is a canonical scan or a select from a canonical
+// scan, or the disable_hoist_projection_in_join_limitation session flag is
+// true.
+func (c *CustomFuncs) CanHoistProjectInput(relation memo.RelExpr) (ok bool) {
+	if c.e.evalCtx.SessionData().DisableHoistProjectionInJoinLimitation {
+		return true
+	}
 	_, _, ok = c.getfilteredCanonicalScan(relation)
 	return ok
 }
diff --git a/pkg/sql/opt/xform/rules/join.opt b/pkg/sql/opt/xform/rules/join.opt
index 9ba682b60116..4d1d174ac676 100644
--- a/pkg/sql/opt/xform/rules/join.opt
+++ b/pkg/sql/opt/xform/rules/join.opt
@@ -444,7 +444,7 @@
 (InnerJoin
     $left:*
     $proj:(Project
-        $right:* & (IsCanonicalScanOrSelect $right)
+        $right:* & (CanHoistProjectInput $right)
         $projections:* & ^(HasVolatileProjection $projections)
         $passthrough:*
     )
@@ -486,7 +486,7 @@
 (LeftJoin
     $left:*
     (Project
-        $right:* & (IsCanonicalScanOrSelect $right)
+        $right:* & (CanHoistProjectInput $right)
         $projections:* & ^(HasVolatileProjection $projections)
         $passthrough:*
     )
diff --git a/pkg/sql/opt/xform/testdata/coster/join b/pkg/sql/opt/xform/testdata/coster/join
index b2764a16d3bb..3bb3a3200990 100644
--- a/pkg/sql/opt/xform/testdata/coster/join
+++ b/pkg/sql/opt/xform/testdata/coster/join
@@ -811,7 +811,7 @@ insert c
                 └── filters (true)
 
 # The cost should be much smaller with this hint.
-opt prefer-lookup-joins-for-fks
+opt set=prefer_lookup_joins_for_fks=true
 INSERT INTO c VALUES (1,1), (2,2)
 ----
 insert c
diff --git a/pkg/sql/opt/xform/testdata/rules/join b/pkg/sql/opt/xform/testdata/rules/join
index 595f4b8c1460..4298e30ba478 100644
--- a/pkg/sql/opt/xform/testdata/rules/join
+++ b/pkg/sql/opt/xform/testdata/rules/join
@@ -330,7 +330,7 @@ memo (optimized, ~28KB, required=[presentation: a:1,b:2,c:3,s:7,t:8,u:9,x:12,y:1
 
 # Joins that exceed reorder_joins_limit are not reordered apart from
 # commutation.
-memo join-limit=1
+memo set=reorder_joins_limit=1
 SELECT *
 FROM stu, abc, xyz, pqr
 WHERE u = a AND a = x AND x = p
@@ -1375,7 +1375,7 @@ memo (optimized, ~12KB, required=[presentation: a:1,b:2,c:3,x:7,y:8,z:9])
  └── G8: (variable x)
 
 # Verify that setting the join limit to 1 allows only commutation.
-exploretrace rule=ReorderJoins format=hide-all join-limit=1
+exploretrace rule=ReorderJoins format=hide-all set=reorder_joins_limit=1
 SELECT * FROM abc
 INNER JOIN stu ON s = a
 INNER JOIN xyz ON s = x
@@ -9950,7 +9950,7 @@ memo (optimized, ~21KB, required=[presentation: ?column?:7])
  ├── G15: (tuple G16)
  └── G16: (scalar-list)
 
-opt join-limit=3
+opt set=reorder_joins_limit=3
 SELECT
     false
 FROM
@@ -9991,7 +9991,7 @@ with &1
       ├── key: ()
       └── fd: ()-->(30)
 
-opt join-limit=3
+opt set=reorder_joins_limit=3
 SELECT 1 FROM ((VALUES (1), (1)) JOIN ((VALUES (1), (1), (1)) JOIN (VALUES (1), (1), (1), (1)) ON true) ON true)
 UNION ALL
 SELECT 1 FROM ((VALUES (1), (1)) JOIN (VALUES (1), (1), (1)) ON true) JOIN (VALUES (1), (1), (1), (1)) ON true
@@ -10230,8 +10230,32 @@ inner-join (merge)
  │         └── columns: m:1 n:2
  └── filters (true)
 
+# The rule should be allowed to fire when the projection is from a join if the
+# session flag disable_hoist_projection_in_join_limitation is true.
+opt expect=HoistProjectFromInnerJoin set=disable_hoist_projection_in_join_limitation=true
+SELECT * FROM (SELECT a, a+b FROM (SELECT tab1.* from abcd tab1, abcd tab2)) JOIN small ON a=m;
+----
+project
+ ├── columns: a:1!null "?column?":13 m:14!null n:15
+ ├── immutable
+ ├── fd: (1)==(14), (14)==(1)
+ ├── inner-join (cross)
+ │    ├── columns: tab1.a:1!null tab1.b:2 m:14!null n:15
+ │    ├── fd: (1)==(14), (14)==(1)
+ │    ├── scan abcd@abcd_a_b_idx [as=tab2]
+ │    ├── inner-join (lookup abcd@abcd_a_b_idx [as=tab1])
+ │    │    ├── columns: tab1.a:1!null tab1.b:2 m:14!null n:15
+ │    │    ├── key columns: [14] = [1]
+ │    │    ├── fd: (1)==(14), (14)==(1)
+ │    │    ├── scan small
+ │    │    │    └── columns: m:14 n:15
+ │    │    └── filters (true)
+ │    └── filters (true)
+ └── projections
+      └── tab1.a:1 + tab1.b:2 [as="?column?":13, outer=(1,2), immutable]
+
 # The rule should not fire when the projection is from a join.
-opt expect-not=HoistProjectFromInnerJoin
+opt expect-not=HoistProjectFromInnerJoin set=disable_hoist_projection_in_join_limitation=false
 SELECT * FROM (SELECT a, a+b FROM (SELECT tab1.* from abcd tab1, abcd tab2)) JOIN small ON a=m
 ----
 inner-join (hash)
@@ -11570,7 +11594,7 @@ semi-join (lookup abc_part@c_idx)
 # NOTE: A locality optimized lookup join is possible here after the join has
 # been reordered (because d is a lax key), so we prevent reordering to test this
 # case and ensure the expect-not holds.
-opt locality=(region=east) expect-not=GenerateLocalityOptimizedLookupJoin join-limit=0
+opt locality=(region=east) expect-not=GenerateLocalityOptimizedLookupJoin set=reorder_joins_limit=0
 SELECT * FROM def_part WHERE EXISTS (SELECT * FROM abc_part WHERE f = c AND e % a = 0) AND d = 10
 ----
 semi-join (lookup abc_part@c_idx)
@@ -11614,7 +11638,7 @@ semi-join (lookup abc_part@c_idx)
 # NOTE: A locality optimized lookup join is possible here after the join has
 # been reordered (because d is a lax key), so we prevent reordering to test this
 # case and ensure the expect-not holds.
-opt locality=(region=east) expect-not=GenerateLocalityOptimizedLookupJoin join-limit=0
+opt locality=(region=east) expect-not=GenerateLocalityOptimizedLookupJoin set=reorder_joins_limit=0
 SELECT * FROM def_part INNER JOIN abc_part ON f = c WHERE d = 10
 ----
 project
@@ -11722,7 +11746,7 @@ anti-join (lookup abc_part)
 # NOTE: A locality optimized lookup join is possible here after the join has
 # been reordered, so we prevent reordering to test this case and ensure the
 # expect-not holds.
-opt locality=(region=east) expect-not=GenerateLocalityOptimizedLookupJoin join-limit=0
+opt locality=(region=east) expect-not=GenerateLocalityOptimizedLookupJoin set=reorder_joins_limit=0
 SELECT * FROM def_part INNER JOIN abc_part ON f = v WHERE d = 1
 ----
 inner-join (lookup abc_part)
diff --git a/pkg/sql/opt/xform/testdata/rules/join_order b/pkg/sql/opt/xform/testdata/rules/join_order
index b234826807c8..d72927dcc547 100644
--- a/pkg/sql/opt/xform/testdata/rules/join_order
+++ b/pkg/sql/opt/xform/testdata/rules/join_order
@@ -28,7 +28,7 @@ CREATE TABLE abc (
 )
 ----
 
-opt join-limit=2 expect=ReorderJoins
+opt set=reorder_joins_limit=2 expect=ReorderJoins
 SELECT * FROM abc, bx, cy WHERE a = 1 AND abc.b = bx.b AND abc.c = cy.c
 ----
 inner-join (lookup cy)
@@ -54,7 +54,7 @@ inner-join (lookup cy)
  │    └── filters (true)
  └── filters (true)
 
-opt join-limit=2 expect=ReorderJoins
+opt set=reorder_joins_limit=2 expect=ReorderJoins
 SELECT * FROM bx, abc, cy WHERE a = 1 AND abc.b = bx.b AND abc.c = cy.c
 ----
 inner-join (lookup bx)
@@ -80,7 +80,7 @@ inner-join (lookup bx)
  │    └── filters (true)
  └── filters (true)
 
-opt join-limit=2 expect=ReorderJoins
+opt set=reorder_joins_limit=2 expect=ReorderJoins
 SELECT * FROM bx, cy, abc WHERE a = 1 AND abc.b = bx.b AND abc.c = cy.c
 ----
 inner-join (lookup bx)
@@ -107,7 +107,7 @@ inner-join (lookup bx)
  └── filters (true)
 
 # Reorder subtrees of size 2.
-exploretrace join-limit=2 rule=ReorderJoins format=hide-all
+exploretrace set=reorder_joins_limit=2 rule=ReorderJoins format=hide-all
 SELECT *
 FROM bx, cy, dz, abc
 WHERE a = 1 AND abc.b = bx.b AND abc.c = cy.c AND cy.c = dz.d
@@ -309,7 +309,7 @@ New expression 3 of 3:
 ----
 
 # No joins should be reordered besides commutation.
-memo join-limit=0 expect-not=ReorderJoins
+memo set=reorder_joins_limit=0 expect-not=ReorderJoins
 SELECT * FROM bx, cy, abc WHERE a = 1 AND abc.b = bx.b AND abc.c = cy.c
 ----
 memo (optimized, ~22KB, required=[presentation: b:1,x:2,c:5,y:6,a:9,b:10,c:11,d:12])
@@ -357,7 +357,7 @@ memo (optimized, ~22KB, required=[presentation: b:1,x:2,c:5,y:6,a:9,b:10,c:11,d:
  ├── G18: (variable a)
  └── G19: (const 1)
 
-memo join-limit=2
+memo set=reorder_joins_limit=2
 SELECT * FROM bx, cy, abc WHERE a = 1 AND abc.b = bx.b AND abc.c = cy.c
 ----
 memo (optimized, ~33KB, required=[presentation: b:1,x:2,c:5,y:6,a:9,b:10,c:11,d:12])
@@ -409,7 +409,7 @@ memo (optimized, ~33KB, required=[presentation: b:1,x:2,c:5,y:6,a:9,b:10,c:11,d:
  ├── G19: (variable a)
  └── G20: (const 1)
 
-opt join-limit=3 expect=ReorderJoins
+opt set=reorder_joins_limit=3 expect=ReorderJoins
 SELECT * FROM bx, cy, dz, abc WHERE a = 1
 ----
 inner-join (cross)
@@ -447,7 +447,7 @@ inner-join (cross)
  │    └── fd: (1)-->(2)
  └── filters (true)
 
-opt join-limit=2 format=show-all
+opt set=reorder_joins_limit=2 format=show-all
 SELECT * FROM abc, bx, cy, dz WHERE a = 1
 ----
 inner-join (cross)
@@ -518,7 +518,7 @@ inner-join (cross)
 # Note the difference in memo size for with and without reorder-joins, for only four tables.
 # TODO(justin): Find a way to reduce this.
 
-memo join-limit=0
+memo set=reorder_joins_limit=0
 SELECT * FROM bx, cy, dz, abc WHERE x = y AND y = z AND z = a
 ----
 memo (optimized, ~29KB, required=[presentation: b:1,x:2,c:5,y:6,d:9,z:10,a:13,b:14,c:15,d:16])
@@ -584,7 +584,7 @@ memo (optimized, ~29KB, required=[presentation: b:1,x:2,c:5,y:6,d:9,z:10,a:13,b:
 # are connected, which allows every join order to be added to the memo.
 # TODO(drewk): implement branch pruning and/or a max operator limit for the
 # memo.
-memo join-limit=3
+memo set=reorder_joins_limit=3
 SELECT * FROM bx, cy, dz, abc WHERE x = y AND y = z AND z = a
 ----
 memo (optimized, ~62KB, required=[presentation: b:1,x:2,c:5,y:6,d:9,z:10,a:13,b:14,c:15,d:16])
@@ -752,7 +752,7 @@ exec-ddl
 CREATE TABLE a (id INT8 PRIMARY KEY)
 ----
 
-opt join-limit=3
+opt set=reorder_joins_limit=3
 SELECT
     1
 FROM
@@ -1965,7 +1965,7 @@ full-join (hash)
       └── y = z
 
 # Iteratively reorder subtrees of up to size 2.
-reorderjoins join-limit=2 format=hide-all
+reorderjoins set=reorder_joins_limit=2 format=hide-all
 SELECT * FROM abc AS a1
 INNER JOIN abc AS a2 ON a1.a = a2.a
 LEFT JOIN abc AS a3 ON a2.b = a3.b
diff --git a/pkg/sql/sessiondatapb/local_only_session_data.proto b/pkg/sql/sessiondatapb/local_only_session_data.proto
index f4c9a3677a35..452f6a8ded52 100644
--- a/pkg/sql/sessiondatapb/local_only_session_data.proto
+++ b/pkg/sql/sessiondatapb/local_only_session_data.proto
@@ -278,6 +278,9 @@ message LocalOnlySessionData {
   bool optimizer_use_not_visible_indexes = 74;
   // CopyFastPathEnabled controls whether the optimized copy mode is enabled.
   bool copy_fast_path_enabled = 75;
+  // disable_hoist_projection_in_join_limitation disables the restrictions
+  // placed on projection hoisting during query planning in the optimizer.
+  bool disable_hoist_projection_in_join_limitation = 76;
 
   ///////////////////////////////////////////////////////////////////////////
   // WARNING: consider whether a session parameter you're adding needs to  //
diff --git a/pkg/sql/vars.go b/pkg/sql/vars.go
index 77c16b611567..05ad8edf3e29 100644
--- a/pkg/sql/vars.go
+++ b/pkg/sql/vars.go
@@ -2032,7 +2032,6 @@ var varGen = map[string]sessionVar{
 		},
 		GlobalDefault: globalFalse,
 	},
-
 	// CockroachDB extension.
 	`show_primary_key_constraint_on_not_visible_columns`: {
 		GetStringVal: makePostgresBoolGetStringValFn(`show_primary_key_constraint_on_not_visible_columns`),
@@ -2157,6 +2156,23 @@ var varGen = map[string]sessionVar{
 			return formatBoolAsPostgresSetting(copyFastPathDefault)
 		},
 	},
+
+	// CockroachDB extension.
+	`disable_hoist_projection_in_join_limitation`: {
+		GetStringVal: makePostgresBoolGetStringValFn(`disable_hoist_projection_in_join_limitation`),
+		Set: func(_ context.Context, m sessionDataMutator, s string) error {
+			b, err := paramparse.ParseBoolVar("disable_hoist_projection_in_join_limitation", s)
+			if err != nil {
+				return err
+			}
+			m.SetDisableHoistProjectionInJoinLimitation(b)
+			return nil
+		},
+		Get: func(evalCtx *extendedEvalContext, _ *kv.Txn) (string, error) {
+			return formatBoolAsPostgresSetting(evalCtx.SessionData().DisableHoistProjectionInJoinLimitation), nil
+		},
+		GlobalDefault: globalFalse,
+	},
 }
 
 // We want test coverage for this on and off so make it metamorphic.
@@ -2209,6 +2225,34 @@ func init() {
 	}()
 }
 
+// SetSessionVariable sets a new value for session setting `varName` in the
+// session settings owned by `evalCtx`, returning an error if not successful.
+// This function should only be used for testing. For general-purpose code,
+// please use SessionAccessor.SetSessionVar instead.
+func SetSessionVariable(
+	ctx context.Context, evalCtx eval.Context, varName, varValue string,
+) (err error) {
+	err = CheckSessionVariableValueValid(ctx, evalCtx.Settings, varName, varValue)
+	if err != nil {
+		return err
+	}
+	sdMutatorBase := sessionDataMutatorBase{
+		defaults: make(map[string]string),
+		settings: evalCtx.Settings,
+	}
+	sdMutator := sessionDataMutator{
+		data:                        evalCtx.SessionData(),
+		sessionDataMutatorBase:      sdMutatorBase,
+		sessionDataMutatorCallbacks: sessionDataMutatorCallbacks{},
+	}
+	_, sVar, err := getSessionVar(varName, false)
+	if err != nil {
+		return err
+	}
+
+	return sVar.Set(ctx, sdMutator, varValue)
+}
+
 // makePostgresBoolGetStringValFn returns a function that evaluates and returns
 // a string representation of the first argument value.
 func makePostgresBoolGetStringValFn(varName string) getStringValFn {