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Overview
| Comment: | Fix markup errors in comments used to generate the documentation - specifically in the documentation on the OP_Seek opcode. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
ef252bc4b59d272460aaebdc0d4b8e34 |
| User & Date: | drh 2016-02-03 19:52:06 |
Context
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2016-02-03
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| 20:04 | Improve performance of fts5 prefix queries on detail=col tables. (check-in: ca11f46d user: dan tags: trunk) | |
| 19:52 | Fix markup errors in comments used to generate the documentation - specifically in the documentation on the OP_Seek opcode. (check-in: ef252bc4 user: drh tags: trunk) | |
| 19:20 | Add "PRAGMA synchronous=EXTRA" which syncs the directory containing the rollback journal when the rollback journal is deleted in order to commit a transaction in DELETE mode. (check-in: af924018 user: drh tags: trunk) | |
Changes
Changes to src/vdbe.c.
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** to the row that corresponds to the current row of P1. ** ** This is a deferred seek. Nothing actually happens until ** the cursor is used to read a record. That way, if no reads ** occur, no unnecessary I/O happens. ** ** P4 may be an array of integers (type P4_INTARRAY) containing ** one entry for each column in the P3 table. If array entry a[i] ** is non-zero, then reading column (a[i]-1) from cursor P3 is ** equivalent to performing the deferred seek and then reading column i ** from P1. This information is stored in P3 and used to redirect ** reads against P3 over to P1, thus possibly avoiding the need to ** seek and read cursor P3. */ /* Opcode: IdxRowid P1 P2 * * * ** Synopsis: r[P2]=rowid |
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4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 |
** to the row that corresponds to the current row of P1. ** ** This is a deferred seek. Nothing actually happens until ** the cursor is used to read a record. That way, if no reads ** occur, no unnecessary I/O happens. ** ** P4 may be an array of integers (type P4_INTARRAY) containing ** one entry for each column in the P3 table. If array entry a(i) ** is non-zero, then reading column a(i)-1 from cursor P3 is ** equivalent to performing the deferred seek and then reading column i ** from P1. This information is stored in P3 and used to redirect ** reads against P3 over to P1, thus possibly avoiding the need to ** seek and read cursor P3. */ /* Opcode: IdxRowid P1 P2 * * * ** Synopsis: r[P2]=rowid |