Created
October 10, 2012 20:02
-
-
Save mattrco/3868058 to your computer and use it in GitHub Desktop.
VDBE opcodes for adding an index to an integer column
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| sqlite> EXPLAIN CREATE INDEX IF NOT EXISTS exampleidx ON names (id); | |
| addr opcode p1 p2 p3 p4 p5 comment | |
| ---- ------------- ---- ---- ---- ------------- -- ------------- | |
| 0 Trace 0 0 0 00 | |
| 1 Goto 0 34 0 00 | |
| 2 CreateIndex 0 1 0 00 | |
| 3 OpenWrite 0 1 0 5 00 | |
| 4 NewRowid 0 2 0 00 | |
| 5 String8 0 3 0 index 00 | |
| 6 String8 0 4 0 exampleidx 00 | |
| 7 String8 0 5 0 names 00 | |
| 8 Copy 1 6 0 00 | |
| 9 String8 0 7 0 CREATE INDEX exampleidx ON names (id) 00 | |
| 10 MakeRecord 3 5 8 aaada 00 | |
| 11 Insert 0 8 2 18 | |
| 12 Close 0 0 0 00 | |
| 13 OpenWrite 2 1 0 keyinfo(1,BINARY) 01 | |
| 14 SorterOpen 3 0 0 keyinfo(1,BINARY) 00 | |
| 15 OpenRead 1 2 0 2 00 | |
| 16 Rewind 1 22 0 00 | |
| 17 Rowid 1 11 0 00 | |
| 18 Column 1 0 10 00 | |
| 19 MakeRecord 10 2 9 db 00 | |
| 20 SorterInsert 3 9 0 00 | |
| 21 Next 1 17 0 00 | |
| 22 SorterSort 3 26 0 00 | |
| 23 SorterData 3 9 0 00 | |
| 24 IdxInsert 2 9 1 10 | |
| 25 SorterNext 3 23 0 00 | |
| 26 Close 1 0 0 00 | |
| 27 Close 2 0 0 00 | |
| 28 Close 3 0 0 00 | |
| 29 Integer 2 9 0 00 | |
| 30 SetCookie 0 1 9 00 | |
| 31 ParseSchema 0 0 0 name='exampleidx' AND type='index' 00 | |
| 32 Expire 0 0 0 00 | |
| 33 Halt 0 0 0 00 | |
| 34 Transaction 0 1 0 00 | |
| 35 VerifyCookie 0 1 0 00 | |
| 36 TableLock 0 1 1 sqlite_master 00 | |
| 37 TableLock 0 2 1 names 00 | |
| 38 Goto 0 2 0 00 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment