36
36
# test t5 STANDARD InnoDB # # # # #
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show columns from t3 like "a%";
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38
Field Type Null Default Default_is_NULL On_Update
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40
select * from data_dictionary.COLUMNS where table_name="t1"
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41
and column_name= "a";
42
42
TABLE_SCHEMA TABLE_NAME COLUMN_NAME COLUMN_TYPE ORDINAL_POSITION COLUMN_DEFAULT COLUMN_DEFAULT_IS_NULL COLUMN_DEFAULT_UPDATE IS_NULLABLE IS_INDEXED IS_USED_IN_PRIMARY IS_UNIQUE IS_MULTI IS_FIRST_IN_MULTI INDEXES_FOUND_IN DATA_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE COLLATION_NAME COLUMN_COMMENT
43
mysqltest t1 a INTEGER 0 NULL TRUE TRUE FALSE FALSE FALSE FALSE FALSE 0 INTEGER 0 0 0 0 NULL
43
mysqltest t1 a INTEGER 0 NULL YES YES NO NO NO NO NO 0 INTEGER 0 0 0 0 NULL
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44
select table_name, column_name from data_dictionary.columns
45
45
where table_schema = 'mysqltest' and table_name = 't1';
46
46
table_name column_name
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140
select column_name, column_default,column_default_is_null from columns
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141
where table_schema='test' and table_name='t1';
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142
column_name column_default column_default_is_null
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146
show columns from t1;
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147
Field Type Null Default Default_is_NULL On_Update
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a INTEGER FALSE FALSE
151
151
alter database data_dictionary;
152
152
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your Drizzle server version for the right syntax to use near '' at line 1
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169
create temporary table t1(f1 int, index(f1));
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170
show columns from t1;
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171
Field Type Null Default Default_is_NULL On_Update
174
174
Field Type Null Default Default_is_NULL On_Update
176
176
show indexes from t1;
177
177
Table Unique Key_name Seq_in_index Column_name
180
180
create table t1(f1 varbinary(32), f2 varbinary(64));
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181
select character_maximum_length, character_octet_length
357
357
SELECT * FROM data_dictionary.collations ORDER BY collation_name;
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358
CHARACTER_SET_NAME COLLATION_NAME DESCRIPTION ID IS_DEFAULT IS_COMPILED SORTLEN
359
binary binary binary 63 TRUE TRUE 1
360
utf8_general_ci utf8_bin utf8 46 FALSE TRUE 1
361
utf8_general_ci utf8_czech_ci utf8 234 FALSE TRUE 8
362
utf8_general_ci utf8_danish_ci utf8 235 FALSE TRUE 8
363
utf8_general_ci utf8_esperanto_ci utf8 241 FALSE TRUE 8
364
utf8_general_ci utf8_estonian_ci utf8 230 FALSE TRUE 8
365
utf8_general_ci utf8_general_ci utf8 45 TRUE TRUE 1
366
utf8_general_ci utf8_hungarian_ci utf8 242 FALSE TRUE 8
367
utf8_general_ci utf8_icelandic_ci utf8 225 FALSE TRUE 8
368
utf8_general_ci utf8_latvian_ci utf8 226 FALSE TRUE 8
369
utf8_general_ci utf8_lithuanian_ci utf8 236 FALSE TRUE 8
370
utf8_general_ci utf8_persian_ci utf8 240 FALSE TRUE 8
371
utf8_general_ci utf8_polish_ci utf8 229 FALSE TRUE 8
372
utf8_general_ci utf8_romanian_ci utf8 227 FALSE TRUE 8
373
utf8_general_ci utf8_roman_ci utf8 239 FALSE TRUE 8
374
utf8_general_ci utf8_sinhala_ci utf8 243 FALSE TRUE 8
375
utf8_general_ci utf8_slovak_ci utf8 237 FALSE TRUE 8
376
utf8_general_ci utf8_slovenian_ci utf8 228 FALSE TRUE 8
377
utf8_general_ci utf8_spanish2_ci utf8 238 FALSE TRUE 8
378
utf8_general_ci utf8_spanish_ci utf8 231 FALSE TRUE 8
379
utf8_general_ci utf8_swedish_ci utf8 232 FALSE TRUE 8
380
utf8_general_ci utf8_turkish_ci utf8 233 FALSE TRUE 8
381
utf8_general_ci utf8_unicode_ci utf8 224 FALSE TRUE 8
359
binary binary binary 63 YES YES 1
360
utf8_general_ci utf8_bin utf8 46 NO YES 1
361
utf8_general_ci utf8_czech_ci utf8 234 NO YES 8
362
utf8_general_ci utf8_danish_ci utf8 235 NO YES 8
363
utf8_general_ci utf8_esperanto_ci utf8 241 NO YES 8
364
utf8_general_ci utf8_estonian_ci utf8 230 NO YES 8
365
utf8_general_ci utf8_general_ci utf8 45 YES YES 1
366
utf8_general_ci utf8_hungarian_ci utf8 242 NO YES 8
367
utf8_general_ci utf8_icelandic_ci utf8 225 NO YES 8
368
utf8_general_ci utf8_latvian_ci utf8 226 NO YES 8
369
utf8_general_ci utf8_lithuanian_ci utf8 236 NO YES 8
370
utf8_general_ci utf8_persian_ci utf8 240 NO YES 8
371
utf8_general_ci utf8_polish_ci utf8 229 NO YES 8
372
utf8_general_ci utf8_romanian_ci utf8 227 NO YES 8
373
utf8_general_ci utf8_roman_ci utf8 239 NO YES 8
374
utf8_general_ci utf8_sinhala_ci utf8 243 NO YES 8
375
utf8_general_ci utf8_slovak_ci utf8 237 NO YES 8
376
utf8_general_ci utf8_slovenian_ci utf8 228 NO YES 8
377
utf8_general_ci utf8_spanish2_ci utf8 238 NO YES 8
378
utf8_general_ci utf8_spanish_ci utf8 231 NO YES 8
379
utf8_general_ci utf8_swedish_ci utf8 232 NO YES 8
380
utf8_general_ci utf8_turkish_ci utf8 233 NO YES 8
381
utf8_general_ci utf8_unicode_ci utf8 224 NO YES 8
382
382
SELECT table_name, column_name
383
383
FROM data_dictionary.columns
384
384
WHERE table_name IN