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MDEV-5816: Stored programs: validation of stored program statements

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This is the prerequisite patch to move the data member
LEX::trg_table_fields to the class sp_head and rename it as
m_trg_table_fields.

This data member is used for handling OLD/NEW pseudo-rows inside
a trigger body and in order to be able to re-parse a trigger body
the data member must be moved from the struct LEX to the class sp_head.
This commit is contained in:
Dmitry Shulga
2023-07-19 17:47:08 +07:00
parent 9f34225ec4
commit 66d88176e9
5 changed files with 14 additions and 22 deletions
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6
sql/sql_trigger.cc
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@@ -939,7 +939,7 @@ bool Table_triggers_list::create_trigger(THD *thd, TABLE_LIST *tables,
*/
old_field= new_field= table->field;
for (trg_field= lex->trg_table_fields.first;
for (trg_field= lex->sphead->m_trg_table_fields.first;
trg_field; trg_field= trg_field->next_trg_field)
{
/*
@@ -1797,7 +1797,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const LEX_CSTRING *db,
in old/new versions of row in trigger into lists containing all such
objects for the trigger_list with same action and timing.
*/
trigger->trigger_fields= lex.trg_table_fields.first;
trigger->trigger_fields= sp->m_trg_table_fields.first;
/*
Also let us bind these objects to Field objects in table being
opened.
@@ -1807,7 +1807,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const LEX_CSTRING *db,
SELECT)...
Anyway some things can be checked only during trigger execution.
*/
for (Item_trigger_field *trg_field= lex.trg_table_fields.first;
for (Item_trigger_field *trg_field= sp->m_trg_table_fields.first;
trg_field;
trg_field= trg_field->next_trg_field)
{