release-2.1: sql: remove EXPLAIN EXECUTE #30725
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Removing the syntax and the code for `EXPLAIN EXECUTE`. Currently this does not work property with the optimizer and shows the heuristic plan. See cockroachdb#30409 for more context. Closes cockroachdb#30409. Release note (sql change): `EXECUTE` is no longer an explainable statement (i.e. `EXPLAIN EXECUTE` is not valid anymore). As an alternative, it is possible to `PREPARE ... AS EXPLAIN ...` and then execute this prepared statement to see the plan for a prepared query.
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knz
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Sep 27, 2018
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Backport 1/1 commits from #30700.
/cc @cockroachdb/release
Removing the syntax and the code for
EXPLAIN EXECUTE. Currently thisdoes not work property with the optimizer and shows the heuristic
plan. See #30409 for more context.
Closes #30409.
Release note (sql change):
EXECUTEis no longer an explainablestatement (i.e.
EXPLAIN EXECUTEis not valid anymore). As analternative, it is possible to
PREPARE ... AS EXPLAIN ...and thenexecute this prepared statement to see the plan for a prepared query.