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This commit switches query jumbling so as prepared statement names are
treated as constants in DeallocateStmt. A boolean field is added to
DeallocateStmt to make a distinction between ALL and named prepared
statements, as "name" was used to make this difference before, NULL
meaning DEALLOCATE ALL.
Prior to this commit, DEALLOCATE was not tracked in pg_stat_statements,
for the reason that it was not possible to treat its name parameter as a
constant. Now that query jumbling applies to all the utility nodes,
this reason does not apply anymore.
Like
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| .. | ||
| cleanup.sql | ||
| cursors.sql | ||
| dml.sql | ||
| level_tracking.sql | ||
| oldextversions.sql | ||
| planning.sql | ||
| select.sql | ||
| user_activity.sql | ||
| utility.sql | ||
| wal.sql | ||