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184e24b225
Fixed bug in DISTINCT Docs/manual.texi: Updated Changelog Cleaned up adding character sets merge/open.c: skip comments myisam/mi_check.c: Fixed bug when sorting index on Windows myisammrg/myrg_info.c: Use only portable printf arguments myisammrg/myrg_rrnd.c: Use only portable printf arguments mysql-test/r/distinct.result: Added test case for bug in distinct mysql-test/r/merge.result: Added test for ALTER TABLE mysql-test/t/distinct.test: Added test case for bug in distinct mysql-test/t/merge.test: Added test for ALTER TABLE sql-bench/crash-me.sh: Fixed portability issues sql/ha_myisammrg.cc: Fixed for ALTER TABLE on MERGE tables sql/item_sum.cc: Fixed bug in DISTINCT sql/sql_db.cc: Added test of namelen in check_db_name sql/sql_select.cc: Fixed bug in DISTINCT sql/sql_select.h: Fixed bug in DISTINCT sql/sql_table.cc: Fixed ALTER TABLE on MERGE tables sql/table.cc: Added test of namelen in check_db_name sql/table.h: Fixed ALTER TABLE on MERGE tables
170 lines
1.8 KiB
Plaintext
170 lines
1.8 KiB
Plaintext
id
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NULL
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-1
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0
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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id facility
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NULL NULL
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-1
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0
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1 /L
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2 A01
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3 ANC
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4 F01
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5 FBX
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6 MT
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7 P
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8 RV
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9 SRV
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10 VMT
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id-5 facility
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NULL NULL
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-6
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-5
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-4 /L
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-3 A01
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-2 ANC
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-1 F01
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0 FBX
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1 MT
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2 P
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3 RV
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4 SRV
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5 VMT
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id concat(facility)
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NULL NULL
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-1
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0
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1 /L
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2 A01
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3 ANC
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4 F01
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5 FBX
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6 MT
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7 P
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8 RV
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9 SRV
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10 VMT
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a max(id) b
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10 10 VMT
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9 9 SRV
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8 8 RV
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7 7 P
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6 6 MT
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5 5 FBX
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4 4 F01
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3 3 ANC
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2 2 A01
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1 1 /L
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-1 -1
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0 0
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NULL NULL NULL
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grp count(*)
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0 7
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1 6
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FACILITY
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NULL
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/L
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A01
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ANC
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F01
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FBX
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MT
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P
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RV
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SRV
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VMT
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FACILITY
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NULL
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/L
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A01
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ANC
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F01
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FBX
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MT
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P
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RV
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SRV
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VMT
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count(*)
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12
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count(facility)
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12
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count(*)
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13
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count(*)
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1
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count(*)
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0
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count(*)
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12
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count(*)
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1
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count(*)
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12
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UserId
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UserId
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UserId
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UserId
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b
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1
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table type possible_keys key key_len ref rows Extra
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t3 index a a 4 NULL 6 Using index; Using temporary
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t2 index a a 4 NULL 5 Using index; Distinct
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t1 eq_ref PRIMARY PRIMARY 4 t2.a 1 where used; Distinct
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a
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1
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table type possible_keys key key_len ref rows Extra
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t1 index PRIMARY PRIMARY 4 NULL 2 Using index; Using temporary
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t3 ref a a 5 t1.a 12 Using index; Distinct
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a
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1
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2
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1
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1
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name
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aa
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ab
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name
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aa
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ab
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1
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1
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key_link_id link
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NULL NULL
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table type possible_keys key key_len ref rows Extra
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t1 index id id 4 NULL 2 Using index; Using temporary
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t2 index id id 8 NULL 1 Using index; Distinct
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t3 index id id 8 NULL 1 Using index; Distinct
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j_lj_t2 index id id 4 NULL 2 where used; Using index; Distinct
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t2_lj index id id 8 NULL 1 where used; Using index; Distinct
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j_lj_t3 index id id 4 NULL 2 where used; Using index; Distinct
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t3_lj index id id 8 NULL 1 where used; Using index; Distinct
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id
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2
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a sec_to_time(sum(time_to_sec(t)))
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1 00:06:15
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1 00:36:30
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1 00:36:30
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a sec_to_time(sum(time_to_sec(t)))
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1 00:06:15
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1 00:36:30
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a sec_to_time(sum(time_to_sec(t)))
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1 00:06:15
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1 00:36:30
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1 00:36:30
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a sec_to_time(sum(time_to_sec(t)))
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1 00:06:15
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1 00:36:30
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