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Do not confuse the constant SQLITE_MAX_ATTACHED with the maximum number of

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schemas.  Add the new SQLITE_MAX_DB constant for the maximum number of
schemas.  [forum:/forumpost/a006d86f72|Forum post a006d86f72].

FossilOrigin-Name: 7b65fb9f7bd616f834633afd64b3448bf9ca2b6e4cc6d6c01e75d1d877c88a79
This commit is contained in:
drh
2021-03-10 16:35:37 +00:00
parent bc3c4e0830
commit 099b385d17
9 changed files with 74 additions and 20 deletions
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31
test/wal.test
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@ -1515,5 +1515,36 @@ foreach mode {OFF MEMORY PERSIST DELETE TRUNCATE WAL} {
db close
}
# 2021-03-10 forum post https://sqlite.org/forum/forumpost/a006d86f72
#
file delete test.db
sqlite3 db test.db
db eval {PRAGMA journal_mode=WAL}
for {set i 0} {$i<$SQLITE_MAX_ATTACHED} {incr i} {
do_test wal-26.1.$i {
file delete attached-$i.db
db eval "ATTACH 'attached-$i.db' AS a$i;"
db eval "PRAGMA a$i.journal_mode=WAL;"
db eval "CREATE TABLE a$i.t$i (x);"
db eval "INSERT INTO t$i VALUES(zeroblob(10000));"
db eval "DELETE FROM t$i;"
db eval "INSERT INTO t$i VALUES(randomblob(10000));"
expr {[file size attached-$i.db-wal]>10000}
} {1}
}
for {set i [expr {$SQLITE_MAX_ATTACHED-1}]} {$i>=0} {incr i -1} {
do_test wal-26.2.$i {
db eval "PRAGMA a$i.wal_checkpoint(TRUNCATE);"
file size attached-$i.db-wal
} {0}
for {set j 0} {$j<$i} {incr j} {
do_test wal-26.2.$i.$j {
expr {[file size attached-$j.db-wal]>10000}
} {1}
}
}
db close
test_restore_config_pagecache
finish_test