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Overview
| Comment: | Add a link to example geometry callback code to rtree.in. |
|---|---|
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
ed402895f82ec529c3b03ccadb8a13da |
| User & Date: | dan 2010-08-31 15:03:14 |
Context
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2010-08-31
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| 15:53 | Expand the description of the large-transaction limitatioo for WAL mode. Identify additional requirements in the second file format document. check-in: 400de5a3af user: drh tags: trunk | |
| 15:03 | Add a link to example geometry callback code to rtree.in. check-in: ed402895f8 user: dan tags: trunk | |
| 11:01 | Add documentation for custom r-tree geometry callbacks to rtree.in check-in: 7e421e2c51 user: dan tags: trunk | |
Changes
Changes to pages/rtree.in.
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invocations of the callback within the same custom r-tree query (for example, a pointer to a complicated data structure used to test for region intersection). If the xDelUser variable is set to a non-NULL value, then after the custom r-tree query has finished running SQLite automatically invokes it with the value of the pUser variable as the only argument. In other words, xDelUser may be set to a destructor function for the pUser value. |
> > > > |
398 399 400 401 402 403 404 405 406 407 408 409 |
invocations of the callback within the same custom r-tree query (for example, a pointer to a complicated data structure used to test for region intersection). If the xDelUser variable is set to a non-NULL value, then after the custom r-tree query has finished running SQLite automatically invokes it with the value of the pUser variable as the only argument. In other words, xDelUser may be set to a destructor function for the pUser value. <p>Example code implementing the "circle" r-tree geometry callback may be found in the file <a href=http://www.sqlite.org/src/doc/trunk/src/test_rtree.c>test_rtree.c</a>. |