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MDEV-22019: Sig 11 in next_breadth_first_tab | max_sort_length setting + double GROUP BY leads to crash

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No need to create a temp table for aggregation if we have encountered some error.
This commit is contained in:
Varun Gupta
2020-03-30 08:03:54 +05:30
parent 0b00c1a22f
commit b11ff3d495
4 changed files with 40 additions and 6 deletions
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8
sql/sql_select.cc
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@ -2210,8 +2210,12 @@ JOIN::optimize_inner()
having_is_correlated= MY_TEST(having->used_tables() & OUTER_REF_TABLE_BIT);
tmp_having= having;
if ((select_lex->options & OPTION_SCHEMA_TABLE))
optimize_schema_tables_reads(this);
if ((select_lex->options & OPTION_SCHEMA_TABLE) &&
optimize_schema_tables_reads(this))
DBUG_RETURN(TRUE);
if (unlikely(thd->is_error()))
DBUG_RETURN(TRUE);
/*
The loose index scan access method guarantees that all grouping or