diff --git a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties.sha256 b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties.sha256
deleted file mode 100644
index fe7cc20f650f..000000000000
--- a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties.sha256
+++ /dev/null
@@ -1 +0,0 @@
-bdb25f5fee117cb98afaca3393ac333cbd28e142814604dab24e02174adfc198
diff --git a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties.sql b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties.sql
deleted file mode 100644
index 2abf490511f4..000000000000
--- a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties.sql
+++ /dev/null
@@ -1,317 +0,0 @@
---  Copyright (c) 2021 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
---  SPDX-License-Identifier: Apache-2.0
-
-SELECT 'Party interning data migration - Preparation...';
-
--- add temporary index to aid string lookups as migrating data
-CREATE UNIQUE INDEX string_interning_external_string_temp_idx ON string_interning USING btree (external_string);
-
--- drop participant_events view (enables column type changes)
-DROP VIEW participant_events;
-
--- add temporary migration function
-CREATE FUNCTION internalize_string_array(prefix TEXT, string_array TEXT[])
-RETURNS INTEGER[]
-LANGUAGE plpgsql
-AS
-$$
-DECLARE
-   result INTEGER[];
-BEGIN
-   EXECUTE
-   'SELECT CASE' ||
-   '  WHEN $2 IS NULL THEN NULL' ||
-   '  WHEN cardinality($2) = 0 THEN ARRAY[]::INTEGER[]' ||
-   '  ELSE (' ||
-   '    SELECT array_agg(string_interning.internal_id)' ||
-   '      FROM' ||
-   '        unnest($2) AS original(string_elem),' ||
-   '        string_interning' ||
-   '      WHERE $1 || original.string_elem = string_interning.external_string' ||
-   '  )' ||
-   'END'
-   INTO result
-   USING prefix, string_array;
-   ASSERT
-     (string_array IS NULL AND result IS NULL) OR cardinality(string_array) = cardinality(result),
-     'Could not internalize some elements in the array: [' || array_to_string(string_array, ', ') || ']';
-   RETURN result;
-END
-$$;
-
-
-SELECT 'Party interning data migration - Migrating party_entries...';
-
--- add party_id to party_entries
-ALTER TABLE party_entries
-  ADD COLUMN party_id INTEGER;
-
--- populate internal party id-s
-UPDATE party_entries
-  SET party_id = string_interning.internal_id
-FROM string_interning
-WHERE 'p|' || string_interning.external_string = party_entries.party;
-
--- add index on party_id
-CREATE INDEX idx_party_entries_party_id_and_ledger_offset ON party_entries(party_id, ledger_offset);
-
-
-
-SELECT 'Party interning data migration - Migrating participant_command_completions...';
-
-ALTER TABLE participant_command_completions
-  ALTER COLUMN submitters TYPE INTEGER[]
-  USING internalize_string_array('p|', submitters);
-
-
-
-SELECT 'Party interning data migration - Migrating participant_events_divulgence...';
-
-DROP INDEX participant_events_divulgence_tree_event_witnesses_idx;
-
-ALTER TABLE participant_events_divulgence
-  ALTER COLUMN submitters TYPE INTEGER[]
-  USING internalize_string_array('p|', submitters);
-
-ALTER TABLE participant_events_divulgence
-  ALTER COLUMN tree_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_divulgence
-  ALTER COLUMN tree_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', tree_event_witnesses);
-
-
-
-SELECT 'Party interning data migration - Migrating participant_events_create...';
-
-DROP INDEX participant_events_create_flat_event_witnesses_idx;
-DROP INDEX participant_events_create_tree_event_witnesses_idx;
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN submitters TYPE INTEGER[]
-  USING internalize_string_array('p|', submitters);
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN tree_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN tree_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', tree_event_witnesses);
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN flat_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN flat_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', flat_event_witnesses);
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN create_signatories TYPE INTEGER[]
-  USING internalize_string_array('p|', create_signatories);
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN create_observers TYPE INTEGER[]
-  USING internalize_string_array('p|', create_observers);
-
-
-
-SELECT 'Party interning data migration - Migrating participant_events_consuming_exercise...';
-
-DROP INDEX participant_events_consuming_exercise_flat_event_witnesses_idx;
-DROP INDEX participant_events_consuming_exercise_tree_event_witnesses_idx;
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN submitters TYPE INTEGER[]
-  USING internalize_string_array('p|', submitters);
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN tree_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN tree_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', tree_event_witnesses);
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN flat_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN flat_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', flat_event_witnesses);
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN exercise_actors TYPE INTEGER[]
-  USING internalize_string_array('p|', exercise_actors);
-
-
-
-SELECT 'Party interning data migration - Migrating participant_events_non_consuming_exercise...';
-
-DROP INDEX participant_events_non_consuming_exercise_flat_event_witnes_idx;
-DROP INDEX participant_events_non_consuming_exercise_tree_event_witnes_idx;
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN submitters TYPE INTEGER[]
-  USING internalize_string_array('p|', submitters);
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN tree_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN tree_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', tree_event_witnesses);
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN flat_event_witnesses DROP DEFAULT;
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN flat_event_witnesses TYPE INTEGER[]
-  USING internalize_string_array('p|', flat_event_witnesses);
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN exercise_actors TYPE INTEGER[]
-  USING internalize_string_array('p|', exercise_actors);
-
-
-
-SELECT 'Party interning data migration - Cleanup...';
-
-DROP INDEX string_interning_external_string_temp_idx;
-DROP FUNCTION internalize_string_array(TEXT, TEXT[]);
-
-CREATE VIEW participant_events
-AS
-SELECT
-    0::smallint as event_kind,
-    event_sequential_id,
-    NULL::text as event_offset,
-    NULL::text as transaction_id,
-    NULL::bigint as ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    NULL::integer as node_index,
-    NULL::text as event_id,
-    contract_id,
-    template_id,
-    NULL::INTEGER[] as flat_event_witnesses,
-    tree_event_witnesses,
-    create_argument,
-    NULL::INTEGER[] as create_signatories,
-    NULL::INTEGER[] as create_observers,
-    NULL::text as create_agreement_text,
-    NULL::bytea as create_key_value,
-    NULL::text as create_key_hash,
-    NULL::text as exercise_choice,
-    NULL::bytea as exercise_argument,
-    NULL::bytea as exercise_result,
-    NULL::INTEGER[] as exercise_actors,
-    NULL::text[] as exercise_child_event_ids,
-    create_argument_compression,
-    NULL::smallint as create_key_value_compression,
-    NULL::smallint as exercise_argument_compression,
-    NULL::smallint as exercise_result_compression
-FROM participant_events_divulgence
-UNION ALL
-SELECT
-    10::smallint as event_kind,
-    event_sequential_id,
-    event_offset,
-    transaction_id,
-    ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    node_index,
-    event_id,
-    contract_id,
-    template_id,
-    flat_event_witnesses,
-    tree_event_witnesses,
-    create_argument,
-    create_signatories,
-    create_observers,
-    create_agreement_text,
-    create_key_value,
-    create_key_hash,
-    NULL::text as exercise_choice,
-    NULL::bytea as exercise_argument,
-    NULL::bytea as exercise_result,
-    NULL::INTEGER[] as exercise_actors,
-    NULL::text[] as exercise_child_event_ids,
-    create_argument_compression,
-    create_key_value_compression,
-    NULL::smallint as exercise_argument_compression,
-    NULL::smallint as exercise_result_compression
-FROM participant_events_create
-UNION ALL
-SELECT
-    20::smallint as event_kind,
-    event_sequential_id,
-    event_offset,
-    transaction_id,
-    ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    node_index,
-    event_id,
-    contract_id,
-    template_id,
-    flat_event_witnesses,
-    tree_event_witnesses,
-    NULL::bytea as create_argument,
-    NULL::INTEGER[] as create_signatories,
-    NULL::INTEGER[] as create_observers,
-    NULL::text as create_agreement_text,
-    create_key_value,
-    NULL::text as create_key_hash,
-    exercise_choice,
-    exercise_argument,
-    exercise_result,
-    exercise_actors,
-    exercise_child_event_ids,
-    NULL::smallint as create_argument_compression,
-    create_key_value_compression,
-    exercise_argument_compression,
-    exercise_result_compression
-FROM participant_events_consuming_exercise
-UNION ALL
-SELECT
-    25::smallint as event_kind,
-    event_sequential_id,
-    event_offset,
-    transaction_id,
-    ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    node_index,
-    event_id,
-    contract_id,
-    template_id,
-    flat_event_witnesses,
-    tree_event_witnesses,
-    NULL::bytea as create_argument,
-    NULL::INTEGER[] as create_signatories,
-    NULL::INTEGER[] as create_observers,
-    NULL::text as create_agreement_text,
-    create_key_value,
-    NULL::text as create_key_hash,
-    exercise_choice,
-    exercise_argument,
-    exercise_result,
-    exercise_actors,
-    exercise_child_event_ids,
-    NULL::smallint as create_argument_compression,
-    create_key_value_compression,
-    exercise_argument_compression,
-    exercise_result_compression
-FROM participant_events_non_consuming_exercise;
-
-
-
-SELECT 'Party interning data migration - Done';
diff --git a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties_and_templates.sha256 b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties_and_templates.sha256
new file mode 100644
index 000000000000..a9b8b755a2de
--- /dev/null
+++ b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties_and_templates.sha256
@@ -0,0 +1 @@
+586e791e3df8f1ff33e254752eca100ef1f2999de693992ad5254c95fa36416f
diff --git a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties_and_templates.sql b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties_and_templates.sql
new file mode 100644
index 000000000000..0dcf92a1873f
--- /dev/null
+++ b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V114__activate_string_interning_for_parties_and_templates.sql
@@ -0,0 +1,736 @@
+--  Copyright (c) 2021 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
+--  SPDX-License-Identifier: Apache-2.0
+
+SELECT 'Interning data migration - Preparation...';
+
+-- add temporary index to aid string lookups as migrating data
+CREATE UNIQUE INDEX string_interning_external_string_temp_idx ON string_interning USING btree (external_string);
+
+-- drop participant_events view (enables column type changes)
+DROP VIEW participant_events;
+
+-- disable hash and merge join to bias the planner to use lookups against the interning table
+SET enable_hashjoin = off;
+SET enable_mergejoin = off;
+
+
+
+
+
+SELECT 'Interning data migration - Migrating party_entries...';
+
+-- add party_id to party_entries
+ALTER TABLE party_entries
+  ADD COLUMN party_id INTEGER;
+
+-- populate internal party id-s
+UPDATE party_entries
+  SET party_id = string_interning.internal_id
+FROM string_interning
+WHERE string_interning.external_string = 'p|' || party_entries.party;
+
+-- add index on party_id
+CREATE INDEX idx_party_entries_party_id_and_ledger_offset ON party_entries(party_id, ledger_offset);
+
+
+
+
+
+SELECT 'Interning data migration - Migrating participant_command_completions...';
+
+-- create new table with temporary name
+CREATE TABLE participant_command_completions_interned (
+    completion_offset VARCHAR NOT NULL,
+    record_time BIGINT NOT NULL,
+    application_id VARCHAR NOT NULL,
+    submitters INTEGER[] NOT NULL,
+    command_id VARCHAR NOT NULL,
+    -- The transaction ID is `NULL` for rejected transactions.
+    transaction_id VARCHAR,
+    -- The submission ID will be provided by the participant or driver if the application didn't provide one.
+    -- Nullable to support historical data.
+    submission_id TEXT,
+    -- The three alternatives below are mutually exclusive, i.e. the deduplication
+    -- interval could have specified by the application as one of:
+    -- 1. an initial offset
+    -- 2. a duration (split into two columns, seconds and nanos, mapping protobuf's 1:1)
+    -- 3. an initial timestamp
+    deduplication_offset TEXT,
+    deduplication_duration_seconds BIGINT,
+    deduplication_duration_nanos INT,
+    deduplication_start BIGINT,
+    -- The three columns below are `NULL` if the completion is for an accepted transaction.
+    -- The `rejection_status_details` column contains a Protocol-Buffers-serialized message of type
+    -- `daml.platform.index.StatusDetails`, containing the code, message, and further details
+    -- (decided by the ledger driver), and may be `NULL` even if the other two columns are set.
+    rejection_status_code INTEGER,
+    rejection_status_message VARCHAR,
+    rejection_status_details BYTEA
+);
+
+SELECT 'DEBUG populate new table...';
+
+-- migrate data
+INSERT INTO participant_command_completions_interned
+SELECT
+    completion_offset,
+    record_time,
+    application_id,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(submitters) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS submitters,
+    command_id,
+    transaction_id,
+    submission_id,
+    deduplication_offset,
+    deduplication_duration_seconds,
+    deduplication_duration_nanos,
+    deduplication_start,
+    rejection_status_code,
+    rejection_status_message,
+    rejection_status_details
+FROM participant_command_completions;
+
+SELECT 'DEBUG add indexes...';
+
+-- rename old indexes
+ALTER INDEX participant_command_completion_offset_application_idx RENAME TO participant_command_completion_offset_application_idx_old;
+
+-- add index(es)
+CREATE INDEX participant_command_completion_offset_application_idx ON participant_command_completions_interned USING btree (completion_offset, application_id);
+
+SELECT 'DEBUG replace original table...';
+
+-- replace original table
+DROP TABLE participant_command_completions CASCADE;
+ALTER TABLE participant_command_completions_interned RENAME TO participant_command_completions;
+
+
+
+
+
+SELECT 'Interning data migration - Migrating participant_events_divulgence...';
+
+-- create new table with temporary name
+CREATE TABLE participant_events_divulgence_interned (
+    -- * fixed-size columns first to avoid padding
+    event_sequential_id BIGINT NOT NULL, -- event identification: same ordering as event_offset
+    -- * event identification
+    event_offset TEXT, -- offset of the transaction that divulged the contract
+    -- * transaction metadata
+    workflow_id TEXT,
+    -- * submitter info (only visible on submitting participant)
+    command_id TEXT,
+    application_id TEXT,
+    submitters INTEGER[],
+    -- * shared event information
+    contract_id TEXT NOT NULL,
+    template_id INTEGER,
+    tree_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- informees
+    -- * contract data
+    create_argument BYTEA,
+    -- * compression flags
+    create_argument_compression SMALLINT
+);
+
+SELECT 'DEBUG populate new table...';
+
+-- migrate data
+INSERT INTO participant_events_divulgence_interned
+SELECT
+    event_sequential_id,
+    event_offset,
+    workflow_id,
+    command_id,
+    application_id,
+    CASE WHEN submitters IS NULL THEN NULL ELSE
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(submitters) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) END AS submitters,
+    contract_id,
+    string_interning.internal_id AS template_id,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(tree_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS tree_event_witnesses,
+    create_argument,
+    create_argument_compression
+FROM participant_events_divulgence
+LEFT OUTER JOIN string_interning
+ON ('t|' || participant_events_divulgence.template_id = string_interning.external_string);
+
+SELECT 'DEBUG add indexes...';
+
+-- rename old indexes
+ALTER INDEX participant_events_divulgence_event_offset RENAME TO participant_events_divulgence_event_offset_old;
+ALTER INDEX participant_events_divulgence_event_sequential_id RENAME TO participant_events_divulgence_event_sequential_id_old;
+ALTER INDEX participant_events_divulgence_contract_id_idx RENAME TO participant_events_divulgence_contract_id_idx_old;
+
+-- add index(es)
+CREATE INDEX participant_events_divulgence_event_offset ON participant_events_divulgence_interned USING btree (event_offset);
+CREATE INDEX participant_events_divulgence_event_sequential_id ON participant_events_divulgence_interned USING btree (event_sequential_id);
+CREATE INDEX participant_events_divulgence_contract_id_idx ON participant_events_divulgence_interned USING btree (contract_id, event_sequential_id);
+
+SELECT 'DEBUG replace original table...';
+
+-- replace original table
+DROP TABLE participant_events_divulgence CASCADE;
+ALTER TABLE participant_events_divulgence_interned RENAME TO participant_events_divulgence;
+
+
+
+
+
+SELECT 'Interning data migration - Migrating participant_events_create...';
+
+-- create new table with temporary name
+CREATE TABLE participant_events_create_interned (
+    -- * fixed-size columns first to avoid padding
+    event_sequential_id BIGINT NOT NULL,      -- event identification: same ordering as event_offset
+    ledger_effective_time BIGINT NOT NULL, -- transaction metadata
+    node_index INTEGER NOT NULL,              -- event metadata
+    -- * event identification
+    event_offset TEXT NOT NULL,
+    -- * transaction metadata
+    transaction_id TEXT NOT NULL,
+    workflow_id TEXT,
+    -- * submitter info (only visible on submitting participant)
+    command_id TEXT,
+    application_id TEXT,
+    submitters INTEGER[],
+    -- * event metadata
+    event_id TEXT NOT NULL,       -- string representation of (transaction_id, node_index)
+    -- * shared event information
+    contract_id TEXT NOT NULL,
+    template_id INTEGER NOT NULL,
+    flat_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- stakeholders
+    tree_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- informees
+    -- * contract data
+    create_argument bytea NOT NULL,
+    create_signatories INTEGER[] NOT NULL,
+    create_observers INTEGER[] NOT NULL,
+    create_agreement_text TEXT,
+    create_key_value BYTEA,
+    create_key_hash TEXT,
+    -- * compression flags
+    create_argument_compression SMALLINT,
+    create_key_value_compression SMALLINT
+);
+
+SELECT 'DEBUG populate new table...';
+
+-- migrate data
+INSERT INTO participant_events_create_interned
+SELECT
+    event_sequential_id,
+    ledger_effective_time,
+    node_index,
+    event_offset,
+    transaction_id,
+    workflow_id,
+    command_id,
+    application_id,
+    CASE WHEN submitters IS NULL THEN NULL ELSE COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(submitters) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) END AS submitters,
+    event_id,
+    contract_id,
+    string_interning.internal_id AS template_id,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(flat_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS flat_event_witnesses,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(tree_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS tree_event_witnesses,
+    create_argument,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(create_signatories) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS create_signatories,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(create_observers) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS create_observers,
+    create_agreement_text,
+    create_key_value,
+    create_key_hash,
+    create_argument_compression,
+    create_key_value_compression
+FROM participant_events_create
+LEFT OUTER JOIN string_interning
+ON ('t|' || participant_events_create.template_id = string_interning.external_string);
+
+SELECT 'DEBUG add indexes...';
+
+-- rename old indexes
+ALTER INDEX participant_events_create_event_offset RENAME TO participant_events_create_event_offset_old;
+ALTER INDEX participant_events_create_event_sequential_id RENAME TO participant_events_create_event_sequential_id_old;
+ALTER INDEX participant_events_create_event_id_idx RENAME TO participant_events_create_event_id_idx_old;
+ALTER INDEX participant_events_create_transaction_id_idx RENAME TO participant_events_create_transaction_id_idx_old;
+ALTER INDEX participant_events_create_contract_id_idx RENAME TO participant_events_create_contract_id_idx_old;
+ALTER INDEX participant_events_create_create_key_hash_idx RENAME TO participant_events_create_create_key_hash_idx_old;
+
+-- add index(es)
+CREATE INDEX participant_events_create_event_offset ON participant_events_create_interned USING btree (event_offset);
+CREATE INDEX participant_events_create_event_sequential_id ON participant_events_create_interned USING btree (event_sequential_id);
+CREATE INDEX participant_events_create_event_id_idx ON participant_events_create_interned USING btree (event_id);
+CREATE INDEX participant_events_create_transaction_id_idx ON participant_events_create_interned USING btree (transaction_id);
+CREATE INDEX participant_events_create_contract_id_idx ON participant_events_create_interned USING hash (contract_id);
+CREATE INDEX participant_events_create_create_key_hash_idx ON participant_events_create_interned USING btree (create_key_hash, event_sequential_id);
+
+SELECT 'DEBUG replace original table...';
+
+-- replace original table
+DROP TABLE participant_events_create CASCADE;
+ALTER TABLE participant_events_create_interned RENAME TO participant_events_create;
+
+
+
+
+
+SELECT 'Interning data migration - Migrating participant_events_consuming_exercise...';
+
+-- create new table with temporary name
+CREATE TABLE participant_events_consuming_exercise_interned (
+    -- * fixed-size columns first to avoid padding
+    event_sequential_id BIGINT NOT NULL,      -- event identification: same ordering as event_offset
+    ledger_effective_time BIGINT NOT NULL, -- transaction metadata
+    node_index INTEGER NOT NULL,              -- event metadata
+    -- * event identification
+    event_offset TEXT NOT NULL,
+    -- * transaction metadata
+    transaction_id TEXT NOT NULL,
+    workflow_id TEXT,
+    -- * submitter info (only visible on submitting participant)
+    command_id TEXT,
+    application_id TEXT,
+    submitters INTEGER[],
+    -- * event metadata
+    event_id TEXT NOT NULL,        -- string representation of (transaction_id, node_index)
+    -- * shared event information
+    contract_id TEXT NOT NULL,
+    template_id INTEGER NOT NULL,
+    flat_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- stakeholders
+    tree_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- informees
+    -- * information about the corresponding create event
+    create_key_value BYTEA,        -- used for the mutable state cache
+    -- * choice data
+    exercise_choice TEXT NOT NULL,
+    exercise_argument bytea NOT NULL,
+    exercise_result BYTEA,
+    exercise_actors INTEGER[] NOT NULL,
+    exercise_child_event_ids TEXT[] NOT NULL,
+    -- * compression flags
+    create_key_value_compression SMALLINT,
+    exercise_argument_compression SMALLINT,
+    exercise_result_compression SMALLINT
+);
+
+SELECT 'DEBUG populate new table...';
+
+-- migrate data
+INSERT INTO participant_events_consuming_exercise_interned
+SELECT
+    event_sequential_id,
+    ledger_effective_time,
+    node_index,
+    event_offset,
+    transaction_id,
+    workflow_id,
+    command_id,
+    application_id,
+    CASE WHEN submitters IS NULL THEN NULL ELSE COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(submitters) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) END AS submitters,
+    event_id,
+    contract_id,
+    string_interning.internal_id AS template_id,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(flat_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS flat_event_witnesses,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(tree_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS tree_event_witnesses,
+    create_key_value,
+    exercise_choice,
+    exercise_argument,
+    exercise_result,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(exercise_actors) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS exercise_actors,
+    exercise_child_event_ids,
+    create_key_value_compression,
+    exercise_argument_compression,
+    exercise_result_compression
+FROM participant_events_consuming_exercise
+LEFT OUTER JOIN string_interning
+ON ('t|' || participant_events_consuming_exercise.template_id = string_interning.external_string);
+
+SELECT 'DEBUG add indexes...';
+
+-- rename old indexes
+ALTER INDEX participant_events_consuming_exercise_event_offset RENAME TO participant_events_consuming_exercise_event_offset_old;
+ALTER INDEX participant_events_consuming_exercise_event_sequential_id RENAME TO participant_events_consuming_exercise_event_sequential_id_old;
+ALTER INDEX participant_events_consuming_exercise_event_id_idx RENAME TO participant_events_consuming_exercise_event_id_idx_old;
+ALTER INDEX participant_events_consuming_exercise_transaction_id_idx RENAME TO participant_events_consuming_exercise_transaction_id_idx_old;
+ALTER INDEX participant_events_consuming_exercise_contract_id_idx RENAME TO participant_events_consuming_exercise_contract_id_idx_old;
+
+-- add index(es)
+CREATE INDEX participant_events_consuming_exercise_event_offset ON participant_events_consuming_exercise_interned USING btree (event_offset);
+CREATE INDEX participant_events_consuming_exercise_event_sequential_id ON participant_events_consuming_exercise_interned USING btree (event_sequential_id);
+CREATE INDEX participant_events_consuming_exercise_event_id_idx ON participant_events_consuming_exercise_interned USING btree (event_id);
+CREATE INDEX participant_events_consuming_exercise_transaction_id_idx ON participant_events_consuming_exercise_interned USING btree (transaction_id);
+CREATE INDEX participant_events_consuming_exercise_contract_id_idx ON participant_events_consuming_exercise_interned USING hash (contract_id);
+
+SELECT 'DEBUG replace original table...';
+
+-- replace original table
+DROP TABLE participant_events_consuming_exercise CASCADE;
+ALTER TABLE participant_events_consuming_exercise_interned RENAME TO participant_events_consuming_exercise;
+
+
+
+
+
+SELECT 'Interning data migration - Migrating participant_events_non_consuming_exercise...';
+
+-- create new table with temporary name
+CREATE TABLE participant_events_non_consuming_exercise_interned (
+    -- * fixed-size columns first to avoid padding
+    event_sequential_id BIGINT NOT NULL,      -- event identification: same ordering as event_offset
+    ledger_effective_time BIGINT NOT NULL, -- transaction metadata
+    node_index INTEGER NOT NULL,              -- event metadata
+    -- * event identification
+    event_offset TEXT NOT NULL,
+    -- * transaction metadata
+    transaction_id TEXT NOT NULL,
+    workflow_id TEXT,
+    -- * submitter info (only visible on submitting participant)
+    command_id TEXT,
+    application_id TEXT,
+    submitters INTEGER[],
+    -- * event metadata
+    event_id TEXT NOT NULL,        -- string representation of (transaction_id, node_index)
+    -- * shared event information
+    contract_id TEXT NOT NULL,
+    template_id INTEGER NOT NULL,
+    flat_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- stakeholders
+    tree_event_witnesses INTEGER[] DEFAULT '{}'::INTEGER[] NOT NULL, -- informees
+    -- * information about the corresponding create event
+    create_key_value BYTEA,        -- used for the mutable state cache
+    -- * choice data
+    exercise_choice TEXT NOT NULL,
+    exercise_argument bytea NOT NULL,
+    exercise_result BYTEA,
+    exercise_actors INTEGER[] NOT NULL,
+    exercise_child_event_ids TEXT[] NOT NULL,
+    -- * compression flags
+    create_key_value_compression SMALLINT,
+    exercise_argument_compression SMALLINT,
+    exercise_result_compression SMALLINT
+);
+
+SELECT 'DEBUG populate new table...';
+
+-- migrate data
+INSERT INTO participant_events_non_consuming_exercise_interned
+SELECT
+    event_sequential_id,
+    ledger_effective_time,
+    node_index,
+    event_offset,
+    transaction_id,
+    workflow_id,
+    command_id,
+    application_id,
+    CASE WHEN submitters IS NULL THEN NULL ELSE COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(submitters) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) END AS submitters,
+    event_id,
+    contract_id,
+    string_interning.internal_id AS template_id,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(flat_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS flat_event_witnesses,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(tree_event_witnesses) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS tree_event_witnesses,
+    create_key_value,
+    exercise_choice,
+    exercise_argument,
+    exercise_result,
+    COALESCE(
+        (
+            SELECT array_agg(string_interning.internal_id)
+            FROM unnest(exercise_actors) string_array(external_string)
+            INNER JOIN string_interning
+            ON (string_interning.external_string = 'p|' || string_array.external_string)
+        ),
+        ARRAY[]::INTEGER[]
+    ) AS exercise_actors,
+    exercise_child_event_ids,
+    create_key_value_compression,
+    exercise_argument_compression,
+    exercise_result_compression
+FROM participant_events_non_consuming_exercise
+LEFT OUTER JOIN string_interning
+ON ('t|' || participant_events_non_consuming_exercise.template_id = string_interning.external_string);
+
+SELECT 'DEBUG add indexes...';
+
+-- rename old indexes
+ALTER INDEX participant_events_non_consuming_exercise_event_offset RENAME TO participant_events_non_consuming_exercise_event_offset_old;
+ALTER INDEX participant_events_non_consuming_exercise_event_sequential_id RENAME TO participant_events_non_consuming_exercise_event_sequential_id_old;
+ALTER INDEX participant_events_non_consuming_exercise_event_id_idx RENAME TO participant_events_non_consuming_exercise_event_id_idx_old;
+ALTER INDEX participant_events_non_consuming_exercise_transaction_id_idx RENAME TO participant_events_non_consuming_exercise_transaction_id_idx_old;
+
+-- add index(es)
+CREATE INDEX participant_events_non_consuming_exercise_event_offset ON participant_events_non_consuming_exercise_interned USING btree (event_offset);
+CREATE INDEX participant_events_non_consuming_exercise_event_sequential_id ON participant_events_non_consuming_exercise_interned USING btree (event_sequential_id);
+CREATE INDEX participant_events_non_consuming_exercise_event_id_idx ON participant_events_non_consuming_exercise_interned USING btree (event_id);
+CREATE INDEX participant_events_non_consuming_exercise_transaction_id_idx ON participant_events_non_consuming_exercise_interned USING btree (transaction_id);
+
+SELECT 'DEBUG replace original table...';
+
+-- replace original table
+DROP TABLE participant_events_non_consuming_exercise CASCADE;
+ALTER TABLE participant_events_non_consuming_exercise_interned RENAME TO participant_events_non_consuming_exercise;
+
+
+
+
+
+SELECT 'Interning data migration - Cleanup...';
+
+-- drop temporary db objects
+DROP INDEX string_interning_external_string_temp_idx;
+
+-- reenable hash and merge joins
+SET enable_hashjoin = on;
+SET enable_mergejoin = on;
+
+-- re-add the participant_events view
+CREATE VIEW participant_events
+AS
+SELECT
+    0::smallint as event_kind,
+    event_sequential_id,
+    NULL::text as event_offset,
+    NULL::text as transaction_id,
+    NULL::bigint as ledger_effective_time,
+    command_id,
+    workflow_id,
+    application_id,
+    submitters,
+    NULL::integer as node_index,
+    NULL::text as event_id,
+    contract_id,
+    template_id,
+    NULL::INTEGER[] as flat_event_witnesses,
+    tree_event_witnesses,
+    create_argument,
+    NULL::INTEGER[] as create_signatories,
+    NULL::INTEGER[] as create_observers,
+    NULL::text as create_agreement_text,
+    NULL::bytea as create_key_value,
+    NULL::text as create_key_hash,
+    NULL::text as exercise_choice,
+    NULL::bytea as exercise_argument,
+    NULL::bytea as exercise_result,
+    NULL::INTEGER[] as exercise_actors,
+    NULL::text[] as exercise_child_event_ids,
+    create_argument_compression,
+    NULL::smallint as create_key_value_compression,
+    NULL::smallint as exercise_argument_compression,
+    NULL::smallint as exercise_result_compression
+FROM participant_events_divulgence
+UNION ALL
+SELECT
+    10::smallint as event_kind,
+    event_sequential_id,
+    event_offset,
+    transaction_id,
+    ledger_effective_time,
+    command_id,
+    workflow_id,
+    application_id,
+    submitters,
+    node_index,
+    event_id,
+    contract_id,
+    template_id,
+    flat_event_witnesses,
+    tree_event_witnesses,
+    create_argument,
+    create_signatories,
+    create_observers,
+    create_agreement_text,
+    create_key_value,
+    create_key_hash,
+    NULL::text as exercise_choice,
+    NULL::bytea as exercise_argument,
+    NULL::bytea as exercise_result,
+    NULL::INTEGER[] as exercise_actors,
+    NULL::text[] as exercise_child_event_ids,
+    create_argument_compression,
+    create_key_value_compression,
+    NULL::smallint as exercise_argument_compression,
+    NULL::smallint as exercise_result_compression
+FROM participant_events_create
+UNION ALL
+SELECT
+    20::smallint as event_kind,
+    event_sequential_id,
+    event_offset,
+    transaction_id,
+    ledger_effective_time,
+    command_id,
+    workflow_id,
+    application_id,
+    submitters,
+    node_index,
+    event_id,
+    contract_id,
+    template_id,
+    flat_event_witnesses,
+    tree_event_witnesses,
+    NULL::bytea as create_argument,
+    NULL::INTEGER[] as create_signatories,
+    NULL::INTEGER[] as create_observers,
+    NULL::text as create_agreement_text,
+    create_key_value,
+    NULL::text as create_key_hash,
+    exercise_choice,
+    exercise_argument,
+    exercise_result,
+    exercise_actors,
+    exercise_child_event_ids,
+    NULL::smallint as create_argument_compression,
+    create_key_value_compression,
+    exercise_argument_compression,
+    exercise_result_compression
+FROM participant_events_consuming_exercise
+UNION ALL
+SELECT
+    25::smallint as event_kind,
+    event_sequential_id,
+    event_offset,
+    transaction_id,
+    ledger_effective_time,
+    command_id,
+    workflow_id,
+    application_id,
+    submitters,
+    node_index,
+    event_id,
+    contract_id,
+    template_id,
+    flat_event_witnesses,
+    tree_event_witnesses,
+    NULL::bytea as create_argument,
+    NULL::INTEGER[] as create_signatories,
+    NULL::INTEGER[] as create_observers,
+    NULL::text as create_agreement_text,
+    create_key_value,
+    NULL::text as create_key_hash,
+    exercise_choice,
+    exercise_argument,
+    exercise_result,
+    exercise_actors,
+    exercise_child_event_ids,
+    NULL::smallint as create_argument_compression,
+    create_key_value_compression,
+    exercise_argument_compression,
+    exercise_result_compression
+FROM participant_events_non_consuming_exercise;
+
+
+
+SELECT 'Interning data migration - Done';
diff --git a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V115__activate_string_interning_for_template_ids.sha256 b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V115__activate_string_interning_for_template_ids.sha256
deleted file mode 100644
index 1bce0188dc36..000000000000
--- a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V115__activate_string_interning_for_template_ids.sha256
+++ /dev/null
@@ -1 +0,0 @@
-960b511d51f44fb439b689f1e9c5b26cdabfc05cfc3d71d0c8fd7b8f3258db7b
diff --git a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V115__activate_string_interning_for_template_ids.sql b/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V115__activate_string_interning_for_template_ids.sql
deleted file mode 100644
index 04a4825ea9b3..000000000000
--- a/ledger/participant-integration-api/src/main/resources/db/migration/postgres-appendonly/V115__activate_string_interning_for_template_ids.sql
+++ /dev/null
@@ -1,221 +0,0 @@
---  Copyright (c) 2021 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
---  SPDX-License-Identifier: Apache-2.0
-
-SELECT 'Template Id interning data migration - Preparation...';
-
--- add temporary index to aid string lookups as migrating data
-CREATE UNIQUE INDEX string_interning_external_string_temp_idx ON string_interning USING btree (external_string);
-
--- drop participant_events view (enables column type changes)
-DROP VIEW participant_events;
-
--- add temporary migration function
-CREATE FUNCTION internalize_string(prefix TEXT, string TEXT)
-RETURNS INTEGER
-LANGUAGE plpgsql
-AS
-$$
-DECLARE
-   result INTEGER;
-BEGIN
-   EXECUTE
-   'SELECT CASE' ||
-   '  WHEN $2 IS NULL THEN NULL' ||
-   '  ELSE (' ||
-   '    SELECT string_interning.internal_id' ||
-   '      FROM string_interning' ||
-   '      WHERE $1 || $2 = string_interning.external_string' ||
-   '  )' ||
-   'END'
-   INTO result
-   USING prefix, string;
-   ASSERT
-     (string IS NULL AND result IS NULL) OR (string IS NOT NULL AND result IS NOT NULL),
-     'Could not internalize the string: ' || string;
-   RETURN result;
-END
-$$;
-
-
-SELECT 'Template Id interning data migration - Migrating participant_events_divulgence...';
-
-DROP INDEX participant_events_divulgence_template_id_idx;
-
-ALTER TABLE participant_events_divulgence
-  ALTER COLUMN template_id TYPE INTEGER
-  USING internalize_string('t|', template_id);
-
-
-
-SELECT 'Template Id interning data migration - Migrating participant_events_create...';
-
-DROP INDEX participant_events_create_template_id_idx;
-
-ALTER TABLE participant_events_create
-  ALTER COLUMN template_id TYPE INTEGER
-  USING internalize_string('t|', template_id);
-
-
-
-SELECT 'Template Id interning data migration - Migrating participant_events_consuming_exercise...';
-
-DROP INDEX participant_events_consuming_exercise_template_id_idx;
-
-ALTER TABLE participant_events_consuming_exercise
-  ALTER COLUMN template_id TYPE INTEGER
-  USING internalize_string('t|', template_id);
-
-
-
-SELECT 'Template Id interning data migration - Migrating participant_events_non_consuming_exercise...';
-
-DROP INDEX participant_events_non_consuming_exercise_template_id_idx;
-
-ALTER TABLE participant_events_non_consuming_exercise
-  ALTER COLUMN template_id TYPE INTEGER
-  USING internalize_string('t|', template_id);
-
-
-
-SELECT 'Template Id interning data migration - Cleanup...';
-
-DROP INDEX string_interning_external_string_temp_idx;
-DROP FUNCTION internalize_string(TEXT, TEXT);
-
-CREATE VIEW participant_events
-AS
-SELECT
-    0::smallint as event_kind,
-    event_sequential_id,
-    NULL::text as event_offset,
-    NULL::text as transaction_id,
-    NULL::bigint as ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    NULL::integer as node_index,
-    NULL::text as event_id,
-    contract_id,
-    template_id,
-    NULL::INTEGER[] as flat_event_witnesses,
-    tree_event_witnesses,
-    create_argument,
-    NULL::INTEGER[] as create_signatories,
-    NULL::INTEGER[] as create_observers,
-    NULL::text as create_agreement_text,
-    NULL::bytea as create_key_value,
-    NULL::text as create_key_hash,
-    NULL::text as exercise_choice,
-    NULL::bytea as exercise_argument,
-    NULL::bytea as exercise_result,
-    NULL::INTEGER[] as exercise_actors,
-    NULL::text[] as exercise_child_event_ids,
-    create_argument_compression,
-    NULL::smallint as create_key_value_compression,
-    NULL::smallint as exercise_argument_compression,
-    NULL::smallint as exercise_result_compression
-FROM participant_events_divulgence
-UNION ALL
-SELECT
-    10::smallint as event_kind,
-    event_sequential_id,
-    event_offset,
-    transaction_id,
-    ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    node_index,
-    event_id,
-    contract_id,
-    template_id,
-    flat_event_witnesses,
-    tree_event_witnesses,
-    create_argument,
-    create_signatories,
-    create_observers,
-    create_agreement_text,
-    create_key_value,
-    create_key_hash,
-    NULL::text as exercise_choice,
-    NULL::bytea as exercise_argument,
-    NULL::bytea as exercise_result,
-    NULL::INTEGER[] as exercise_actors,
-    NULL::text[] as exercise_child_event_ids,
-    create_argument_compression,
-    create_key_value_compression,
-    NULL::smallint as exercise_argument_compression,
-    NULL::smallint as exercise_result_compression
-FROM participant_events_create
-UNION ALL
-SELECT
-    20::smallint as event_kind,
-    event_sequential_id,
-    event_offset,
-    transaction_id,
-    ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    node_index,
-    event_id,
-    contract_id,
-    template_id,
-    flat_event_witnesses,
-    tree_event_witnesses,
-    NULL::bytea as create_argument,
-    NULL::INTEGER[] as create_signatories,
-    NULL::INTEGER[] as create_observers,
-    NULL::text as create_agreement_text,
-    create_key_value,
-    NULL::text as create_key_hash,
-    exercise_choice,
-    exercise_argument,
-    exercise_result,
-    exercise_actors,
-    exercise_child_event_ids,
-    NULL::smallint as create_argument_compression,
-    create_key_value_compression,
-    exercise_argument_compression,
-    exercise_result_compression
-FROM participant_events_consuming_exercise
-UNION ALL
-SELECT
-    25::smallint as event_kind,
-    event_sequential_id,
-    event_offset,
-    transaction_id,
-    ledger_effective_time,
-    command_id,
-    workflow_id,
-    application_id,
-    submitters,
-    node_index,
-    event_id,
-    contract_id,
-    template_id,
-    flat_event_witnesses,
-    tree_event_witnesses,
-    NULL::bytea as create_argument,
-    NULL::INTEGER[] as create_signatories,
-    NULL::INTEGER[] as create_observers,
-    NULL::text as create_agreement_text,
-    create_key_value,
-    NULL::text as create_key_hash,
-    exercise_choice,
-    exercise_argument,
-    exercise_result,
-    exercise_actors,
-    exercise_child_event_ids,
-    NULL::smallint as create_argument_compression,
-    create_key_value_compression,
-    exercise_argument_compression,
-    exercise_result_compression
-FROM participant_events_non_consuming_exercise;
-
-
-
-SELECT 'Template Id interning data migration - Done';