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|
##############################################
# Test instant ADD/DROP COLUMN for REDUNDANT format
##############################################
CREATE TABLE t1 (c1 char(20), c2 char(20)) ROW_FORMAT=REDUNDANT;
INSERT INTO t1 values ("row1_c1", "row1_c2");
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` char(20) DEFAULT NULL,
`c2` char(20) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=REDUNDANT
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 0
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c2 1 13 16711934 0
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN At the end [c1, c2, +c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c3 char(20) default "c3_def", ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 6 0 1
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c2 1 13 16711934 0
c3 2 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
row1_c1 row1_c2 c3_def
INSERT INTO t1 values ("row2_c1", "row2_c2", "row2_c3");
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
row1_c1 row1_c2 c3_def
row2_c1 row2_c2 row2_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r1_c1" where c1="row1_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
r1_c1 row1_c2 c3_def
row2_c1 row2_c2 row2_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c3="row1_c3" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
r1_c1 row1_c2 row1_c3
row2_c1 row2_c2 row2_c3
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN At the first [+c0, c1, c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c0 char(20) default "c0_def" FIRST, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 7 0 2
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c2 2 13 16711934 0
c3 3 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def row2_c1 row2_c2 row2_c3
INSERT INTO t1 values ("row3_c0", "row3_c1", "row3_c2", "row3_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def row2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r2_c1" where c1="row2_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def r2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c0="row2_c0" where c1="r2_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
row2_c0 r2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN in between [c0, c1, +c4, c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c4 char(20) default "c4_def" AFTER c1, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 8 0 3
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
c2 3 13 16711934 0
c3 4 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 row3_c1 c4_def row3_c2 row3_c3
INSERT INTO t1 values ("row4_c0", "row4_c1", "row4_c4", "row4_c2", "row4_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 row3_c1 c4_def row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r3_c1" where c1="row3_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 r3_c1 c4_def row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row3_c4" where c1="r3_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 r3_c1 row3_c4 row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# ------------------------------------------------------------
# DROP A COLUMN in between [c0, c1, c4, -c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c2, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 7 0 4
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
c3 3 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 row4_c1 row4_c4 row4_c3
INSERT INTO t1 values ("row5_c0", "row5_c1", "row5_c4", "row5_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 row4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r4_c1" where c1="row4_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 r4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row1_c4" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 row1_c4 row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 r4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# ------------------------------------------------------------
# DROP A COLUMN at the end [c0, c1, c4, ~c2, -c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c3, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 6 0 5
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 row5_c1 row5_c4
INSERT INTO t1 values ("row6_c0", "row6_c1", "row6_c4");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 row5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# INPLACE UPDATE
UPDATE t1 SET c1="r5_c1" where c1="row5_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 r5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# NOT INPLACE UPDATE
UPDATE t1 SET c0="row1_c0" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
row1_c0 r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 r5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# ------------------------------------------------------------
# DROP A COLUMN at the beginning [-c0, c1, c4, ~c2, ~c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c0, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 6
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c4 1 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
row6_c1 row6_c4
INSERT INTO t1 values ("row7_c1", "row7_c4");
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
row6_c1 row6_c4
row7_c1 row7_c4
# INPLACE UPDATE
UPDATE t1 SET c1="r6_c1" where c1="row6_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row2_c4" where c1="r2_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
# ------------------------------------------------------------
# Rebuild table [c1, c4]
# ------------------------------------------------------------
ALTER TABLE t1 FORCE;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 0
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c4 1 13 16711934 0
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
INSERT INTO t1 values ("row8_c1", "row8_c4");
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
row8_c1 row8_c4
###########
# CLEANUP #
###########
DROP TABLE t1;
############################################
# Test instant ADD/DROP COLUMN for DYNAMIC format
############################################
CREATE TABLE t1 (c1 char(20), c2 char(20)) ROW_FORMAT=DYNAMIC;
INSERT INTO t1 values ("row1_c1", "row1_c2");
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` char(20) DEFAULT NULL,
`c2` char(20) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=DYNAMIC
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 0
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c2 1 13 16711934 0
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN At the end [c1, c2, +c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c3 char(20) default "c3_def", ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 6 0 1
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c2 1 13 16711934 0
c3 2 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
row1_c1 row1_c2 c3_def
INSERT INTO t1 values ("row2_c1", "row2_c2", "row2_c3");
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
row1_c1 row1_c2 c3_def
row2_c1 row2_c2 row2_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r1_c1" where c1="row1_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
r1_c1 row1_c2 c3_def
row2_c1 row2_c2 row2_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c3="row1_c3" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
r1_c1 row1_c2 row1_c3
row2_c1 row2_c2 row2_c3
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN At the first [+c0, c1, c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c0 char(20) default "c0_def" FIRST, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 7 0 2
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c2 2 13 16711934 0
c3 3 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def row2_c1 row2_c2 row2_c3
INSERT INTO t1 values ("row3_c0", "row3_c1", "row3_c2", "row3_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def row2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r2_c1" where c1="row2_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def r2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c0="row2_c0" where c1="r2_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
row2_c0 r2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN in between [c0, c1, +c4, c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c4 char(20) default "c4_def" AFTER c1, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 8 0 3
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
c2 3 13 16711934 0
c3 4 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 row3_c1 c4_def row3_c2 row3_c3
INSERT INTO t1 values ("row4_c0", "row4_c1", "row4_c4", "row4_c2", "row4_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 row3_c1 c4_def row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r3_c1" where c1="row3_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 r3_c1 c4_def row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row3_c4" where c1="r3_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 r3_c1 row3_c4 row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# ------------------------------------------------------------
# DROP A COLUMN in between [c0, c1, c4, -c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c2, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 7 0 4
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
c3 3 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 row4_c1 row4_c4 row4_c3
INSERT INTO t1 values ("row5_c0", "row5_c1", "row5_c4", "row5_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 row4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r4_c1" where c1="row4_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 r4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row1_c4" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 row1_c4 row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 r4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# ------------------------------------------------------------
# DROP A COLUMN at the end [c0, c1, c4, ~c2, -c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c3, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 6 0 5
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 row5_c1 row5_c4
INSERT INTO t1 values ("row6_c0", "row6_c1", "row6_c4");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 row5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# INPLACE UPDATE
UPDATE t1 SET c1="r5_c1" where c1="row5_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 r5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# NOT INPLACE UPDATE
UPDATE t1 SET c0="row1_c0" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
row1_c0 r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 r5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# ------------------------------------------------------------
# DROP A COLUMN at the beginning [-c0, c1, c4, ~c2, ~c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c0, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 6
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c4 1 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
row6_c1 row6_c4
INSERT INTO t1 values ("row7_c1", "row7_c4");
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
row6_c1 row6_c4
row7_c1 row7_c4
# INPLACE UPDATE
UPDATE t1 SET c1="r6_c1" where c1="row6_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row2_c4" where c1="r2_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
# ------------------------------------------------------------
# Rebuild table [c1, c4]
# ------------------------------------------------------------
ALTER TABLE t1 FORCE;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 0
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c4 1 13 16711934 0
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
INSERT INTO t1 values ("row8_c1", "row8_c4");
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
row8_c1 row8_c4
###########
# CLEANUP #
###########
DROP TABLE t1;
############################################
# Test instant ADD/DROP COLUMN for COMPACT format
############################################
CREATE TABLE t1 (c1 char(20), c2 char(20)) ROW_FORMAT=COMPACT;
INSERT INTO t1 values ("row1_c1", "row1_c2");
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` char(20) DEFAULT NULL,
`c2` char(20) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPACT
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 0
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c2 1 13 16711934 0
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN At the end [c1, c2, +c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c3 char(20) default "c3_def", ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 6 0 1
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c2 1 13 16711934 0
c3 2 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
row1_c1 row1_c2 c3_def
INSERT INTO t1 values ("row2_c1", "row2_c2", "row2_c3");
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
row1_c1 row1_c2 c3_def
row2_c1 row2_c2 row2_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r1_c1" where c1="row1_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
r1_c1 row1_c2 c3_def
row2_c1 row2_c2 row2_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c3="row1_c3" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c2 c3
r1_c1 row1_c2 row1_c3
row2_c1 row2_c2 row2_c3
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN At the first [+c0, c1, c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c0 char(20) default "c0_def" FIRST, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 7 0 2
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c2 2 13 16711934 0
c3 3 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def row2_c1 row2_c2 row2_c3
INSERT INTO t1 values ("row3_c0", "row3_c1", "row3_c2", "row3_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def row2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r2_c1" where c1="row2_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
c0_def r2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c0="row2_c0" where c1="r2_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c2 c3
c0_def r1_c1 row1_c2 row1_c3
row2_c0 r2_c1 row2_c2 row2_c3
row3_c0 row3_c1 row3_c2 row3_c3
# ------------------------------------------------------------
# ADD AN INSTANT COLUMN in between [c0, c1, +c4, c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 ADD COLUMN c4 char(20) default "c4_def" AFTER c1, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 8 0 3
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
c2 3 13 16711934 0
c3 4 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 row3_c1 c4_def row3_c2 row3_c3
INSERT INTO t1 values ("row4_c0", "row4_c1", "row4_c4", "row4_c2", "row4_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 row3_c1 c4_def row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r3_c1" where c1="row3_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 r3_c1 c4_def row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row3_c4" where c1="r3_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c2 c3
c0_def r1_c1 c4_def row1_c2 row1_c3
row2_c0 r2_c1 c4_def row2_c2 row2_c3
row3_c0 r3_c1 row3_c4 row3_c2 row3_c3
row4_c0 row4_c1 row4_c4 row4_c2 row4_c3
# ------------------------------------------------------------
# DROP A COLUMN in between [c0, c1, c4, -c2, c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c2, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 7 0 4
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
c3 3 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 row4_c1 row4_c4 row4_c3
INSERT INTO t1 values ("row5_c0", "row5_c1", "row5_c4", "row5_c3");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 row4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# INPLACE UPDATE
UPDATE t1 SET c1="r4_c1" where c1="row4_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 c4_def row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 r4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row1_c4" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4 c3
c0_def r1_c1 row1_c4 row1_c3
row2_c0 r2_c1 c4_def row2_c3
row3_c0 r3_c1 row3_c4 row3_c3
row4_c0 r4_c1 row4_c4 row4_c3
row5_c0 row5_c1 row5_c4 row5_c3
# ------------------------------------------------------------
# DROP A COLUMN at the end [c0, c1, c4, ~c2, -c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c3, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 6 0 5
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c0 0 13 16711934 1
c1 1 13 16711934 0
c4 2 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 row5_c1 row5_c4
INSERT INTO t1 values ("row6_c0", "row6_c1", "row6_c4");
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 row5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# INPLACE UPDATE
UPDATE t1 SET c1="r5_c1" where c1="row5_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
c0_def r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 r5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# NOT INPLACE UPDATE
UPDATE t1 SET c0="row1_c0" where c1="r1_c1";
SELECT * FROM t1 ORDER BY c1;
c0 c1 c4
row1_c0 r1_c1 row1_c4
row2_c0 r2_c1 c4_def
row3_c0 r3_c1 row3_c4
row4_c0 r4_c1 row4_c4
row5_c0 r5_c1 row5_c4
row6_c0 row6_c1 row6_c4
# ------------------------------------------------------------
# DROP A COLUMN at the beginning [-c0, c1, c4, ~c2, ~c3]
# ------------------------------------------------------------
ALTER TABLE t1 DROP COLUMN c0, ALGORITHM=INSTANT;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 6
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c4 1 13 16711934 1
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
row6_c1 row6_c4
INSERT INTO t1 values ("row7_c1", "row7_c4");
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
row6_c1 row6_c4
row7_c1 row7_c4
# INPLACE UPDATE
UPDATE t1 SET c1="r6_c1" where c1="row6_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 c4_def
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
# NOT INPLACE UPDATE
UPDATE t1 SET c4="row2_c4" where c1="r2_c1";
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
# ------------------------------------------------------------
# Rebuild table [c1, c4]
# ------------------------------------------------------------
ALTER TABLE t1 FORCE;
# Metadata from INFORMATION_SCHEMA.TABLES
NAME N_COLS INSTANT_COLS TOTAL_ROW_VERSIONS
test/t1 5 0 0
# Metadata from INFORMATION_SCHEMA.COLUMNS
NAME POS MTYPE PRTYPE HAS_DEFAULT
c1 0 13 16711934 0
c4 1 13 16711934 0
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
INSERT INTO t1 values ("row8_c1", "row8_c4");
SELECT * FROM t1 ORDER BY c1;
c1 c4
r1_c1 row1_c4
r2_c1 row2_c4
r3_c1 row3_c4
r4_c1 row4_c4
r5_c1 row5_c4
r6_c1 row6_c4
row7_c1 row7_c4
row8_c1 row8_c4
###########
# CLEANUP #
###########
DROP TABLE t1;
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