ttl: handleTTLStorageParamChange might return incorrect descriptorChanged value
#110727
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A-row-level-ttl
A-schema-changes
C-bug
Code not up to spec/doc, specs & docs deemed correct. Solution expected to change code/behavior.
T-sql-foundations
SQL Foundations Team (formerly SQL Schema + SQL Sessions)
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Xiang-Gu
added
C-bug
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cc @ecwall |
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@Xiang-Gu is there any risk in just fixing this so |
Looking at this closer, it seems like cockroach/pkg/sql/alter_table.go Line 849 in 1755d67 |
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Oct 20, 2023
111713: sql: fix nil-pointer error in local retry r=DrewKimball a=DrewKimball #### tree: return correct parse error for pg_lsn This patch changes the error returned upon failing to parse a PG_LSN value to match postgres. Previously, the error was an internal error. Informs #111327 Release note: None #### sql: fix nil-pointer error in local retry In #105451, we added logic to locally retry a distributed query after an error. However, the retry logic unconditionally updated a field of `DistSQLReceiver` that may be nil, which could cause a nil-pointer error in some code paths (e.g. apply-join). This patch adds a check that the field is non-nil, as is done for other places where it is updated. There is no release note because the change has not yet made it into a release. Fixes #111327 Release note: None 112654: opt: fix inverted index constrained scans for equality filters r=mgartner a=mgartner #### opt: fix inverted index constrained scans for equality filters This commit fixes a bug introduced in #101178 that allows the optimizer to generated inverted index scans on columns that are not filtered by the query. For example, an inverted index over the column `j1` could be scanned for a filter involving a different column, like `j2 = '5'`. The bug is caused by a simple omission of code that must check that the column in the filter is an indexed column. Fixes #111963 There is no release note because this bug is not present in any releases. Release note: None #### randgen: generate single-column indexes more often This commit makes `randgen` more likely to generate single-column indexes. It is motivated by the bug #111963, which surprisingly lived on the master branch for sixth months without being detected. It's not entirely clear why TLP or other randomized tests did not catch the bug, which has such a simple reproduction. One theory is that indexes tend to be multi-column and constrained scans on multi-column inverted indexes are not commonly planned for randomly generated queries because the set of requirements to generate the scan are very specific: the query must hold each prefix column constant, e.g. `a=1 AND b=2 AND j='5'::JSON`. The likelihood of randomly generating such an expression may be so low that the bug was not caught. By making 10% of indexes single-column, this bug may have been more likely to be caught because only the inverted index column needs to be constrained by an equality filter. Release note: None 112690: sql: disallow invocation of procedures outside of CALL r=mgartner a=mgartner #### sql: disallow invocation of procedures outside of CALL This commit adds some missing checks to ensure that procedures cannot be invoked in any context besides as the root expression in `CALL` statements. Epic: CRDB-25388 Release note: None #### sql: add tests with function invocation in procedure argument This commit adds a couple of tests that show that functions can be used in procedure argument expressions. Release note: None 112698: sql: clarify comments/naming of descriptorChanged flag r=rafiss a=rafiss fixes #110727 Release note: None 112701: sql/logictest: fix flakes in select_for_update_read_committed r=mgartner a=mgartner The `select_for_update_read_committed` tests were flaking because not all statements were being run under READ COMMITTED isolation. The logic test infrastructure does not allow fine-grained control of sessions, and setting the isolation level in one statement would only apply to a single session. Subsequent statements are not guaranteed to run in the same session because they could run in any session in the connection pool. This commit wraps each statement in an explicitly transaction with an explicit isolation level to ensure READ COMMITTED is used. In the future, we should investigate allowing fine-grained and explicit control of sessions in logic tests. Fixes #112677 Release note: None 112726: sql: make tests error if a leaf txn is not created when expected r=rharding6373 a=rharding6373 This adds a test-only error if a leaf transaction is expected to be used by a plan but a root transaction is used instead. Epic: none Informs: #111097 Release note: None 112767: log: fix stacktrace test goroutine counts r=rickystewart a=dhartunian Previously, we would use the count of the string `goroutine ` as a proxy for the number of goroutines in the stacktrace. This stopped working in go 1.21 due to this change: golang/go@51225f6 We should consider using a stacktrace parser in the future. Supports #112088 Epic: None Release note: None Co-authored-by: Drew Kimball <[email protected]> Co-authored-by: Marcus Gartner <[email protected]> Co-authored-by: Rafi Shamim <[email protected]> Co-authored-by: rharding6373 <[email protected]> Co-authored-by: David Hartunian <[email protected]>
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Following up discussion in #110252, here is an example where a mutation is enqueued and
descriptorChangedis set to true (ALTER PK is achieved by enqueuing a PrimaryIndexSwap mutation).The reason such an issue is filed is concerning
handleTTLStorageParamChange(), in whichdescriptorChangedcan be false even if a mutation is enqueued.The text was updated successfully, but these errors were encountered: