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initial support for vector indexes

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MDEV-33407 Parser support for vector indexes

The syntax is

  create table t1 (... vector index (v) ...);

limitation:
* v is a binary string and NOT NULL
* only one vector index per table
* temporary tables are not supported

MDEV-33404 Engine-independent indexes: subtable method

added support for so-called "high level indexes", they are not visible
to the storage engine, implemented on the sql level. For every such
an index in a table, say, t1, the server implicitly creates a second
table named, like, t1#i#05 (where "05" is the index number in t1).
This table has a fixed structure, no frm, not accessible directly,
doesn't go into the table cache, needs no MDLs.

MDEV-33406 basic optimizer support for k-NN searches

for a query like SELECT ... ORDER BY func() optimizer will use
item_func->part_of_sortkey() to decide what keys can be used
to resolve ORDER BY.
This commit is contained in:
Sergei Golubchik
2024-01-17 15:32:45 +01:00
parent 9ccf02a9a7
commit d6add9a03d
28 changed files with 888 additions and 89 deletions
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16
sql/sql_insert.cc
View File

@ -933,6 +933,13 @@ bool mysql_insert(THD *thd, TABLE_LIST *table_list,
table->file->extra(HA_EXTRA_WRITE_CAN_REPLACE);
if (duplic == DUP_UPDATE)
table->file->extra(HA_EXTRA_INSERT_WITH_UPDATE);
thd->abort_on_warning= !ignore && thd->is_strict_mode();
table->reset_default_fields();
table->prepare_triggers_for_insert_stmt_or_event();
table->mark_columns_needed_for_insert();
/*
let's *try* to start bulk inserts. It won't necessary
start them as values_list.elements should be greater than
@ -960,7 +967,8 @@ bool mysql_insert(THD *thd, TABLE_LIST *table_list,
goto abort;
}
}
table->file->prepare_for_insert(create_lookup_handler);
if (table->file->prepare_for_insert(create_lookup_handler))
goto abort;
/**
This is a simple check for the case when the table has a trigger
that reads from it, or when the statement invokes a stored function
@ -978,12 +986,6 @@ bool mysql_insert(THD *thd, TABLE_LIST *table_list,
table->file->ha_reset_copy_info();
}
thd->abort_on_warning= !ignore && thd->is_strict_mode();
table->reset_default_fields();
table->prepare_triggers_for_insert_stmt_or_event();
table->mark_columns_needed_for_insert();
if (fields.elements || !value_count || table_list->view != 0)
{
if (table->triggers &&