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a8f2f7af32
row_search_for_mysql(): When a secondary index record might not be visible in the current transaction's read view and we consult the clustered index and optionally some undo log records, return the relevant columns of the clustered index record to MySQL instead of the secondary index record. REC_INFO_DELETED_FLAG: Move the definition from rem0rec.ic to rem0rec.h. ibuf_insert_to_index_page_low(): New function, refactored from ibuf_insert_to_index_page(). ibuf_insert_to_index_page(): When we are inserting a record in place of a delete-marked record and some fields of the record differ, update that record just like row_ins_sec_index_entry_by_modify() would do. mysql_row_templ_t: Add clust_rec_field_no. row_sel_store_mysql_rec(), row_sel_push_cache_row_for_mysql(): Add the flag rec_clust, for returning data at clust_rec_field_no instead of rec_field_no. Resurrect the debug assertion that the record not be marked for deletion. (Bug #55626) buf_LRU_free_block(): Refactored from buf_LRU_search_and_free_block(). This is needed for the innodb_change_buffering_debug diagnostics. [UNIV_DEBUG || UNIV_IBUF_DEBUG] ibuf_debug, buf_page_get_gen(), buf_flush_page_try(): Implement innodb_change_buffering_debug=1 for evicting pages from the buffer pool, so that change buffering will be attempted more frequently.
102 lines
2.1 KiB
Text
102 lines
2.1 KiB
Text
SET GLOBAL tx_isolation='REPEATABLE-READ';
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CREATE TABLE bug56680(
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a INT AUTO_INCREMENT PRIMARY KEY,
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b CHAR(1),
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c INT,
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INDEX(b))
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ENGINE=InnoDB;
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INSERT INTO bug56680 VALUES(0,'x',1);
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BEGIN;
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SELECT b FROM bug56680;
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b
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x
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BEGIN;
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UPDATE bug56680 SET b='X';
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SELECT b FROM bug56680;
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b
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x
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SELECT * FROM bug56680;
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a b c
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1 x 1
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ROLLBACK;
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SELECT b FROM bug56680;
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b
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x
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SET GLOBAL tx_isolation='READ-UNCOMMITTED';
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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INSERT INTO bug56680 SELECT 0,b,c FROM bug56680;
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BEGIN;
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SELECT b FROM bug56680 LIMIT 2;
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b
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x
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x
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BEGIN;
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DELETE FROM bug56680 WHERE a=1;
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INSERT INTO bug56680 VALUES(1,'X',1);
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SELECT b FROM bug56680 LIMIT 3;
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b
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X
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x
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x
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SELECT b FROM bug56680 LIMIT 2;
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b
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x
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x
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CHECK TABLE bug56680;
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Table Op Msg_type Msg_text
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test.bug56680 check status OK
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ROLLBACK;
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SELECT b FROM bug56680 LIMIT 2;
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b
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x
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x
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CHECK TABLE bug56680;
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Table Op Msg_type Msg_text
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test.bug56680 check status OK
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SELECT b FROM bug56680 LIMIT 2;
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b
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x
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x
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CREATE TABLE bug56680_2(
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a INT AUTO_INCREMENT PRIMARY KEY,
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b VARCHAR(2) CHARSET latin1 COLLATE latin1_german2_ci,
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c INT,
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INDEX(b))
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ENGINE=InnoDB;
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INSERT INTO bug56680_2 SELECT 0,_latin1 0xdf,c FROM bug56680;
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BEGIN;
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SELECT HEX(b) FROM bug56680_2 LIMIT 2;
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HEX(b)
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DF
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DF
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DELETE FROM bug56680_2 WHERE a=1;
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INSERT INTO bug56680_2 VALUES(1,'SS',1);
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SELECT HEX(b) FROM bug56680_2 LIMIT 3;
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HEX(b)
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5353
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DF
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DF
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CHECK TABLE bug56680_2;
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Table Op Msg_type Msg_text
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test.bug56680_2 check status OK
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DELETE FROM bug56680_2 WHERE a=1;
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INSERT INTO bug56680_2 VALUES(1,_latin1 0xdf,1);
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SELECT HEX(b) FROM bug56680_2 LIMIT 3;
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HEX(b)
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DF
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DF
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DF
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CHECK TABLE bug56680_2;
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Table Op Msg_type Msg_text
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test.bug56680_2 check status OK
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DROP TABLE bug56680_2;
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DROP TABLE bug56680;
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