More test output refinements.

FossilOrigin-Name: e64a5681793238fa04fe3636f48d34b2dd36cdfa

Fix a minor problem in progress.test. No code changes.

FossilOrigin-Name: a95ae93b32a9ad2ae017124ed0881802c3c741c0

Run progress callback checks less frequently in the main VDBE evaluation
loop. This makes up for the extra CPU cycles used to increment the cycle
counter for SQLITE_STMTSTATUS_VM_STEP.

FossilOrigin

Run progress callback checks less frequently in the main VDBE evaluation
loop. This makes up for the extra CPU cycles used to increment the cycle
counter for SQLITE_STMTSTATUS_VM_STEP.

FossilOrigin-Name: 3e8b02011db2f393d4850115a471709b0a88594f

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Fix some problems in os_unix.c when compiled with ENABLE_LOCKING_STYLE on OSX. Also some minor issues with test scripts.

FossilOrigin-Name: 8088031bc949bd4efb5edf33bbd1bce5700fca56

Fix a compiler warning and an unreachable branch. Restore 100% branch test
coverage.

FossilOrigin-Name: 4dc148bb4cec5ecba167cdcb4959a4f0fa05a96f

Fix a problem whereby following an IO error in CommitPhaseTwo() of a multi-file transaction the b-tree layer could be left in TRANS_WRITE state, causing problems later on.

FossilOrigin-Name: dbe569a

Fix a problem whereby following an IO error in CommitPhaseTwo() of a multi-file transaction the b-tree layer could be left in TRANS_WRITE state, causing problems later on.

FossilOrigin-Name: dbe569a099c2855480e35c0cc4d9332821ad80da

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If the keyword "unordered" appears at the end of the SQLITE_STAT1.STAT
column for an index, then use that index for equality lookups only, never
for range queries or sorting.

FossilOrigin-Name: 3b96

If the keyword "unordered" appears at the end of the SQLITE_STAT1.STAT
column for an index, then use that index for equality lookups only, never
for range queries or sorting.

FossilOrigin-Name: 3b964155f611c437d53d44feafa22f531942b1b4

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Further improvements to the fuzzer. It still is not quite working. Pausing
to work on other things....

FossilOrigin-Name: 5f2f2fce40f43debeb0492c9b460b85c7dad2bde

Fix a problem in the unix VFS implementation of xNextSystemCall(). Also some typos that prevent compilation when HAVE_POSIX_FALLOCATE is defined.

FossilOrigin-Name: bc6cce81565b17f886478bd51500bba2e

Fix a problem in the unix VFS implementation of xNextSystemCall(). Also some typos that prevent compilation when HAVE_POSIX_FALLOCATE is defined.

FossilOrigin-Name: bc6cce81565b17f886478bd51500bba2ed11ec1d

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Fix the documentation for the sqlite3_column_*_name() functions to describe
that the information can be invalidated when a prepared statement is
reprepared by the first invocation of an sqlite3_step

Fix the documentation for the sqlite3_column_*_name() functions to describe
that the information can be invalidated when a prepared statement is
reprepared by the first invocation of an sqlite3_step() for a particular
execution cycle.

FossilOrigin-Name: 7270f80ac5dd17b979f1f790b2dfcf811866c1dc

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Add the ability to enable and disable foreign key constraints and triggers
using calls to sqlite3_db_config().

FossilOrigin-Name: 09e167f9c14625924b17bbb1f292f89ac9ddc93a

Fix a problem with INTEGER PRIMARY KEY columns and the pre-update hook.

FossilOrigin-Name: 24d4d5dd007197a141555bcca6f2ac9ab47cde80

Hold the database mutex for the duration of an sqlite3changeset_apply() call. Also for the duration of all sqlite3session_xxx() calls.

FossilOrigin-Name: c615c38c3283e21c33550c093099a793761123a7

Fixes for compiler warnings. Minor code cleanup.

FossilOrigin-Name: 9604d13001e0a195718c7f03fc0e73e352226caa

Further improvements to documentation in sqlite3session.h.

FossilOrigin-Name: 07019bb9e8d8f2445d1e0342f74ab520e9804cb5

Fix a memory allocation issues in the preupdate hook so that the hook.test
script runs clean in valgrind.

FossilOrigin-Name: bd94f4c8b1c4590c437030f0122015f1a37e2582

Update comments in sqlite3session.h. More to come.

FossilOrigin-Name: e73e9082f3b14088752717193a10dd7657deb8af

Enhances to the query planner such that "x IS NULL" constraints take the
STAT2 statistics into account, just like "x=VALUE" constraints.

FossilOrigin-Name: 2353176811f752a16c1f2351a3d3431919b062a9

Fix an instance of signed arithmetic overflow and an one bit-shift overflow.
Mark six other signed arithmetic overflow locations that need fixing.

FossilOrigin-Name: 04abab71ecd52f6070b9f84781a3df3d

Fix an instance of signed arithmetic overflow and an one bit-shift overflow.
Mark six other signed arithmetic overflow locations that need fixing.

FossilOrigin-Name: 04abab71ecd52f6070b9f84781a3df3d6dba7722

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Add the experimental sqlite3_preupdate_hook() API.

FossilOrigin-Name: 6145d7b89f83500318713779c60f79a7ab2098ba

When a stale schema-cookie is seen, expire only the one statement that
encountered the bad cookie, not every statement on the database
connection. Ticket [b72787b1a7cea1f]

FossilOrigin-Name: 1bca0

When a stale schema-cookie is seen, expire only the one statement that
encountered the bad cookie, not every statement on the database
connection. Ticket [b72787b1a7cea1f]

FossilOrigin-Name: 1bca0a7e198391202fd2bc1650c0a62028a9aaa5

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Fix a problem with "EXPLAIN QUERY PLAN SELECT count(*) FROM tbl".

FossilOrigin-Name: 9f9f32882501ac9b6e60f81195a64bdbf6e4497b

Increment the change counter and update the SQLite version number whenever
page 1 is added to the WAL. Ticket [5d863f876ee9561b9]

FossilOrigin-Name: c1e0d09cd3f5feae123468a35f147021d839641c

Add a test case demonstrating the problem described by ticket [5d863f876e].

FossilOrigin-Name: af54963f0fa0afafbc2d0847f30543c041b182ec

Fix comments, including some documentation comments, in the page cache
logic. No code changes.

FossilOrigin-Name: c80e9c1a0dc0e501b209874e147e1cb1348cb4a4