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26 commits

Author SHA1 Message Date
Alexey Botchkov
277aa532f3 MDEV-25408 JSON_TABLE: AddressSanitizer CHECK failed in Binary_string::realloc_raw 
We need to update default values if we change the column's charsets.
 2021-04-21 10:21:47 +04:00
Alexey Botchkov
991bfebe8f MDEV-25379 JSON_TABLE: ERROR ON clauses are ignored if a column is not on select list. 
If a field is not in the read set - read it in the local buffer anyway to check for errors.
 2021-04-21 10:21:47 +04:00
Sergei Petrunia
1eda21be1f Code cleanup: thd->lex->current_select->context == s_lex here, so use s_lex 2021-04-21 10:21:47 +04:00
Sergei Petrunia
a96408092c MDEV-25397: JSON_TABLE: Unexpected ER_MIX_OF_GROUP_FUNC_AND_FIELDS 
When doing name resolution, do the same what WHERE/ON clauses do:
they don't count in select_lex->non_agg_field_used().
 2021-04-21 10:21:47 +04:00
Alexey Botchkov
f82947e48d MDEV-17399 JSON_TABLE. 
atch to get rid of duplicating code of the Create_tmp_table.
 2021-04-21 10:21:47 +04:00
Alexey Botchkov
a5b454f98a MDEV-25259 JSON_TABLE: Illegal mix of collations upon executing query with combination of charsets via view. 
now the ::print printed too much. Limit it for fields with no CHARSET
possible.
 2021-04-21 10:21:47 +04:00
Alexey Botchkov
a2ce788f02 MDEV-25259 JSON_TABLE: Illegal mix of collations upon executing query with combination of charsets via view. 
The ::print method didn't print the explicitly specified charset.
 2021-04-21 10:21:47 +04:00
Sergei Petrunia
6bac48d0cf MDEV-25381: JSON_TABLE: ER_WRONG_OUTER_JOIN upon query with LEFT and RIGHT joins and view 
Table_function_json_table::m_dep_tables attempts to cache the value of
m_json->used_tables(), poorly. Remove the cache and use the value
directly.
 2021-04-21 10:21:46 +04:00
Sergei Petrunia
4a10dd0253 MDEV-25380: JSON_TABLE: Assertion `join->best_read < double(1.797...) fails 
The query used a subquery of this form:

SELECT ...
WHERE
   EXISTS( SELECT ...
           FROM JSON_TABLE(outer_ref, ..) as JT
           WHERE trivial_correlation_cond)

EXISTS-to-IN conversion code was unable to see that the subquery will
still be correlated after the trivial_correlation is removed, which
eventually caused a crash due to inability to construct a query plan.

Fixed by making Item_subselect::walk() also walk arguments of Table
Functions.
 2021-04-21 10:21:46 +04:00
Sergei Petrunia
1be9c51beb MDEV-25202: JSON_TABLE: Early table reference leads to unexpected result set 
- Address review input. No functional changes.
 2021-04-21 10:21:45 +04:00
Sergei Petrunia
84cf9c2e11 MDEV-25202: JSON_TABLE: Early table reference leads to unexpected result set 
(Also fixes MDEV-25254).
Re-work Name Resolution for the argument of JSON_TABLE(json_doc, ....)
function. The json_doc argument can refer to other tables, but it can
only refer to the tables that precede[*] the JSON_TABLE(...) call.

[*] - For queries with RIGHT JOINs, the "preceding" is determined after
the query is normalized by converting RIGHT JOIN into left one.

The implementation is as follows:
- Table function arguments use their own Name_resolution_context.

- The Name_resolution_context now has a bitmap of tables that should be
  ignored when searching for a field.

- get_disallowed_table_deps() walks the TABLE_LIST::nested_join tree
  and computes a bitmap of tables that do not "precede" the given
  JSON_TABLE(...) invocation  (according the above definition of
  "preceding").
 2021-04-21 10:21:45 +04:00
Alexey Botchkov
13390a70e2 MDEV-25255 JSON_TABLE: CREATE TABLE ignores NULL ON ERROR (implicit or explicit) and fails. 
should not abort on field::set().
 2021-04-21 10:21:45 +04:00
Alexey Botchkov
d2e2219e46 MDEV-25146 JSON_TABLE: Non-descriptive + wrong error messages upon trying to store array or object. 
More informative messages added.
Do not issue additional messages if already handled.
 2021-04-21 10:21:45 +04:00
Alexey Botchkov
e2d5eb67a1 MDEV-25263 JSON_TABLE: json_table test fails with valgrind. 
Field reset added.
 2021-04-21 10:21:45 +04:00
Alexey Botchkov
0cea1ea7d3 MDEV-25183 JSON_TABLE: CREATE VIEW involving NESTED PATH ends up with invalid frm. 
calling members of NULL object crashes on some platforms.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
3edc4a0998 MDEV-25229 SON_TABLE: Server crashes in hton_name upon MATCH .. AGAINST. 
No plugin for the JSON_TABLE so get the storage type name directly.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
6a5f86bf59 MDEV-25230 JSON_TABLE: CREATE VIEW with 2nd level NESTED PATH ends up with invalid frm, Assertion `m_status == DA_ERROR || m_status == DA_OK || m_status == DA_OK_BULK' failed. 
Handle multiple NESTED paths.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
46d592a047 MDEV-25188 JSON_TABLE: ASAN use-after-poison in Field_long::reset / Table_function_json_table::setup or malloc(): invalid size. 
MDEV-25192 JSON_TABLE: ASAN use-after-poison in field_conv_memcpy / Create_tmp_table::finalize upon query with derived table.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
90c4dff5ab MDEV-25178 JSON_TABLE: ASAN use-after-poison in my_fill_8bit Json_table_column::On_response::respond. 
table record buffer size was smaller than required when the charset
changes.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
6f56458a76 MDEV-25183 JSON_TABLE: CREATE VIEW involving NESTED PATH ends up with invalid frm. 
Wrong comma was added after the single column.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
51ac57fbbe MDEV-25151 JSON_TABLE: Unexpectedly padded values in a PATH column. 
Field length can increase after the change_charset(), so need to
set field->ptr properly.

also sensitive parts of the test moved to json_not_embedded.test.
 2021-04-21 10:21:44 +04:00
Alexey Botchkov
abdc39b0a7 MDEV-25143 JSON_TABLE: Server crashes in handler::print_error / hton_name upon ERROR ON EMPTY. 
should return some error code from ha_json_table::rnd_pos() not just 1.
 2021-04-21 10:21:44 +04:00
Sergei Petrunia
98556ef84a MDEV-25142: JSON_TABLE: CREATE VIEW involving EXISTS PATH ends up with invalid frm 2021-04-21 10:21:43 +04:00
Sergei Petrunia
93daad3a1e MDEV-17399: JSON_TABLE: cleanup table dependency code 
- Don't touch simplify_joins()
- All dependencies caused by JSON_TABLE(...) are now added by
  add_table_function_dependencies().
 2021-04-21 10:21:43 +04:00
Sergei Petrunia
2f650fb955 MDEV-17399: JSON_TABLE: Fix the problem with cross-nested-join dependency 
Fix for for the problem with
- Cross-outer-join dependency
- dead-end join prefix
- join order pruning

See the comments in the patch for detailed description
 2021-04-21 10:21:43 +04:00
Alexey Botchkov
e9fd327ee3 MDEV-17399 Add support for JSON_TABLE. 
The specific table handler for the table functions was introduced,
and used to implement JSON_TABLE.
 2021-04-21 10:21:43 +04:00