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Correct the documentation to show that sqlite3_column_text() returns 

a NULL pointer (not an empty string) when the column value is NULL.
The same goes for sqlite3_column_blob().  Ticket #1334. (CVS 2558)

FossilOrigin-Name: fd1e013a14710ed2ecabddedc0d110562cfdbfc2
This commit is contained in:
drh 2005-07-22 22:53:15 +00:00
parent e23399fc9c
commit ed90e26313
3 changed files with 10 additions and 10 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Begin\sadding\scode\sto\ssupport\smultiple\sIN\sconstraints\son\sthe\ssame\sindex.\s(CVS\s2557)
D 2005-07-22T00:31:40
C Correct\sthe\sdocumentation\sto\sshow\sthat\ssqlite3_column_text()\sreturns\na\sNULL\spointer\s(not\san\sempty\sstring)\swhen\sthe\scolumn\svalue\sis\sNULL.\nThe\ssame\sgoes\sfor\ssqlite3_column_blob().\s\sTicket\s#1334.\s(CVS\s2558)
D 2005-07-22T22:53:16
F Makefile.in 22ea9c0fe748f591712d8fe3c6d972c6c173a165
F Makefile.linux-gcc 06be33b2a9ad4f005a5f42b22c4a19dab3cbb5c7
F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@ -251,7 +251,7 @@ F www/audit.tcl 90e09d580f79c7efec0c7d6f447b7ec5c2dce5c0
F www/autoinc.tcl b357f5ba954b046ee35392ce0f884a2fcfcdea06
F www/c_interface.tcl b51b08591554c16a0c3ef718364a508ac25abc7e
F www/capi3.tcl 7a7cc225fe02eb7ab861a6019b08baa0014409e1
F www/capi3ref.tcl bf2ca74997fff2f460bc721c04165861e241a71a
F www/capi3ref.tcl 885f2aa112e2e9b8822753bf2972d5afd0cfeba9
F www/changes.tcl 8fb8a688e6233d03b354d3f47499f388b887c67c
F www/common.tcl de758130d54d95d151ea0d17a2ae5b92e1bb01de
F www/compile.tcl 276546d7eb445add5a867193bbd80f6919a6b084
@ -286,7 +286,7 @@ F www/tclsqlite.tcl 425be741b8ae664f55cb1ef2371aab0a75109cf9
F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
F www/whentouse.tcl 528299b8316726dbcc5548e9aa0648c8b1bd055b
P e2f822ac82d0a5a59de0b63cce65d4fd6c178ff1
R 156ee4225ef63d3a2b0a126183a1b6ad
P 103f8ccb9013689a480766ebffbf570d4aa8bac5
R c4c1b015b27df10cfaa4a6eb48f50835
U drh
Z b87a4baf4ad23e926496089f67763fa0
Z 3d55d319bdf70ffa0b770d1f9917d757

2
manifest.uuid
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@ -1 +1 @@
103f8ccb9013689a480766ebffbf570d4aa8bac5
fd1e013a14710ed2ecabddedc0d110562cfdbfc2

6
www/capi3ref.tcl
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@ -1,4 +1,4 @@
set rcsid {$Id: capi3ref.tcl,v 1.23 2005/06/16 19:48:39 drh Exp $}
set rcsid {$Id: capi3ref.tcl,v 1.24 2005/07/22 22:53:16 drh Exp $}
source common.tcl
header {C/C++ Interface For SQLite Version 3}
puts {
@ -322,8 +322,8 @@ int sqlite3_column_type(sqlite3_stmt*, int iCol);
<tr><th>Internal Type</th><th>Requested Type</th><th>Conversion</th></tr>
<tr><td> NULL </td><td> INTEGER</td><td>Result is 0</td></tr>
<tr><td> NULL </td><td> FLOAT </td><td> Result is 0.0</td></tr>
<tr><td> NULL </td><td> TEXT </td><td> Result is an empty string</td></tr>
<tr><td> NULL </td><td> BLOB </td><td> Result is a zero-length BLOB</td></tr>
<tr><td> NULL </td><td> TEXT </td><td> Result is NULL pointer</td></tr>
<tr><td> NULL </td><td> BLOB </td><td> Result is NULL pointer</td></tr>
<tr><td> INTEGER </td><td> FLOAT </td><td> Convert from integer to float</td></tr>
<tr><td> INTEGER </td><td> TEXT </td><td> ASCII rendering of the integer</td></tr>
<tr><td> INTEGER </td><td> BLOB </td><td> Same as for INTEGER->TEXT</td></tr>