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Comment:Test cases for length() of a large blob in an aggregate query.
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SHA1:d095fa4bfabd765c8e935ed227a334161097dd34
User & Date: drh 2012-03-28 02:51:51
Context
2012-03-28
13:41
Improvements to comments. Minor changes to code in the hot path of OP_Column - with the hope of get a few cycles of performance improvement. check-in: ca093103 user: drh tags: faster-typeof-and-length
02:51
Test cases for length() of a large blob in an aggregate query. check-in: d095fa4b user: drh tags: faster-typeof-and-length
02:43
Fix the typeof() and length() optimization so that it works for aggregates as well as scalar queries. check-in: bc18215a user: drh tags: faster-typeof-and-length
Changes
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Changes to test/func.test.

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  db eval {SELECT typeof(+x) FROM t29 ORDER BY id}
} {integer null real blob text}
do_test func-29.4 {
  set x [lindex [sqlite3_db_status db CACHE_MISS 1] 1]
  if {$x>100} {set x many}
  set x
} {many}











  

finish_test







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  db eval {SELECT typeof(+x) FROM t29 ORDER BY id}
} {integer null real blob text}
do_test func-29.4 {
  set x [lindex [sqlite3_db_status db CACHE_MISS 1] 1]
  if {$x>100} {set x many}
  set x
} {many}
do_test func-29.5 {
  db close
  sqlite3 db test.db
  sqlite3_db_status db CACHE_MISS 1
  db eval {SELECT sum(length(x)) FROM t29}
} {1000009}
do_test func-29.6 {
  set x [lindex [sqlite3_db_status db CACHE_MISS 1] 1]
  if {$x<5} {set x 1}
  set x
} {1}
  

finish_test