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Fix memory alloc failed in batch mode.

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This commit is contained in:
TotaJ
2021-02-04 17:12:22 +08:00
committed by Gitee
parent d4ec71fdab
commit ce1fd44cda
1 changed files with 9 additions and 0 deletions
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9
src/gausskernel/process/tcop/postgres.cpp
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@ -8989,7 +8989,16 @@ int PostgresMain(int argc, char* argv[], const char* dbname, const char* usernam
#endif
exec_init_poolhandles();
/*
* Enable pbe optimization in batch mode, cause it may generate too many cplan
* when enable_pbe_optimization is false, which may consume lots of memory and
* lead to 'memory alloc failed'. To avoid this problem, enable pbe optimization
* to use gplan in this batch.
*/
bool original = u_sess->attr.attr_sql.enable_pbe_optimization;
u_sess->attr.attr_sql.enable_pbe_optimization = true;
exec_batch_bind_execute(&input_message);
u_sess->attr.attr_sql.enable_pbe_optimization = original;
if (is_unique_sql_enabled() && is_local_unique_sql()) {
UpdateUniqueSQLStat(NULL, NULL, GetCurrentStatementLocalStartTimestamp());
}