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Overview
Comment:Update the header comment for sqlite3_blob_open to note that it is not possible to write to a column that is indexed, part of a primary key or, if foreign key support is enabled, part of a foreign key.
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SHA1: 2fd487fdb669df89a8eb62cd0b7dc27ea1016edf
User & Date: dan 2009-10-07 11:29:40
Context
2009-10-07
16:04
Add a missing OP_Close opcode to VDBE programs that check for FK constraint violations. check-in: 5caa4a2b user: dan tags: trunk
11:29
Update the header comment for sqlite3_blob_open to note that it is not possible to write to a column that is indexed, part of a primary key or, if foreign key support is enabled, part of a foreign key. check-in: 2fd487fd user: dan tags: trunk
10:43
Update header file comments describing the sqlite3_changes and sqlite3_total_changes functions to describe how changes made by foreign key actions are handled. check-in: 4c342c02 user: dan tags: trunk
Changes
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Changes to src/sqlite.h.in.

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**
** <pre>
**     SELECT zColumn FROM zDb.zTable WHERE [rowid] = iRow;
** </pre> {END}
**
** If the flags parameter is non-zero, then the BLOB is opened for read
** and write access. If it is zero, the BLOB is opened for read access.




**
** Note that the database name is not the filename that contains
** the database but rather the symbolic name of the database that
** is assigned when the database is connected using [ATTACH].
** For the main database file, the database name is "main".
** For TEMP tables, the database name is "temp".
**







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**
** <pre>
**     SELECT zColumn FROM zDb.zTable WHERE [rowid] = iRow;
** </pre> {END}
**
** If the flags parameter is non-zero, then the BLOB is opened for read
** and write access. If it is zero, the BLOB is opened for read access.
** It is not possible to open a column that is part of an index or primary 
** key for writing. ^If [foreign key constraints] are enabled, it is 
** not possible to open a column that is part of a foreign key (sometimes 
** termed a child key) for writing.
**
** Note that the database name is not the filename that contains
** the database but rather the symbolic name of the database that
** is assigned when the database is connected using [ATTACH].
** For the main database file, the database name is "main".
** For TEMP tables, the database name is "temp".
**