Change the documentation to clearly state that the result of
sqlite3_column_type() is undefined following a type conversion. (CVS 4007) FossilOrigin-Name: 960be575e2b062a34c96d006e411ad34ded58063
This commit is contained in:
@@ -1,5 +1,5 @@
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C Fix\sto\scheck-in\s(4005).\s\sA\scall\sto\ssqlite3_column_blob()\sshould\snot\smake\nsubsequent\scalls\sto\ssqlite3_column_type()\sreturn\sSQLITE_BLOB.\nSqlite3_column_type()\sreturns\sthe\sinitial\stype.\s(CVS\s4006)
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D 2007-05-15T14:10:40
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C Change\sthe\sdocumentation\sto\sclearly\sstate\sthat\sthe\sresult\sof\nsqlite3_column_type()\sis\sundefined\sfollowing\sa\stype\sconversion.\s(CVS\s4007)
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D 2007-05-15T14:17:25
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F Makefile.in 87b200ad9970907f76df734d29dff3d294c10935
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F Makefile.linux-gcc 2d8574d1ba75f129aba2019f0b959db380a90935
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F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
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@@ -447,7 +447,7 @@ F www/audit.tcl 90e09d580f79c7efec0c7d6f447b7ec5c2dce5c0
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F www/autoinc.tcl b357f5ba954b046ee35392ce0f884a2fcfcdea06
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F www/c_interface.tcl b51b08591554c16a0c3ef718364a508ac25abc7e
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F www/capi3.tcl 88884dd743039d1a95aa57f4a5eb369de7744716
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F www/capi3ref.tcl 31da5635eb64ab0f47c71b93b131a6bcb1ddebc9
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F www/capi3ref.tcl 8f1a17a10d95b48385ec4608449279274125c88a
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F www/changes.tcl 550300b0ff00fc1b872f7802b2d5a1e7587d3e58
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F www/common.tcl 2b793e5c31486c8a01dd27dc0a631ad93704438e
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F www/compile.tcl 276546d7eb445add5a867193bbd80f6919a6b084
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@@ -491,7 +491,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
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F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
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F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
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F www/whentouse.tcl fc46eae081251c3c181bd79c5faef8195d7991a5
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P cf2dd45b58380de7f3e167b5357848d12872caa3
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R c70e0740af8fc22bb0f88652371152ba
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P b5e85deb5a0316781a6f39d6085b9fcfb9f88c6d
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R 2c94f4739f016800a57525b336740acc
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U drh
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Z 8f2f5d1cc7ed3029aa9c988b8eb2451c
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Z 5d300394ab97e7ae63df9330c51a060a
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+1
-1
@@ -1 +1 @@
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b5e85deb5a0316781a6f39d6085b9fcfb9f88c6d
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960be575e2b062a34c96d006e411ad34ded58063
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+21
-8
@@ -1,4 +1,4 @@
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set rcsid {$Id: capi3ref.tcl,v 1.58 2007/05/15 13:27:08 drh Exp $}
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set rcsid {$Id: capi3ref.tcl,v 1.59 2007/05/15 14:17:25 drh Exp $}
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source common.tcl
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header {C/C++ Interface For SQLite Version 3}
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puts {
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@@ -158,9 +158,9 @@ api {} {
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#define SQLITE_TRANSIENT ((void(*)(void *))-1)
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} {
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In the SQL strings input to sqlite3_prepare_v2() and sqlite3_prepare16_v2(),
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one or more literals can be replace by a parameter "?" or ":AAA" or
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"@AAA" or "\$VVV"
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where AAA is an alphanumeric identifier and VVV is a variable name according
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one or more literals can be replace by a parameter "?" or "?NNN"
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or ":AAA" or "@AAA" or "\$VVV" where NNN is an integer literal,
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AAA is an alphanumeric identifier and VVV is a variable name according
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to the syntax rules of the TCL programming language.
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The values of these parameters (also called "host parameter names")
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can be set using the sqlite3_bind_*() routines.
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@@ -172,7 +172,9 @@ api {} {
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and subsequent
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occurrences have the same index as the first occurrence. The index for
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named parameters can be looked up using the
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sqlite3_bind_parameter_name() API if desired.
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sqlite3_bind_parameter_name() API if desired. The index for "?NNN"
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parametes is the value of NNN. The NNN value must be between 1 and 999.
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The third argument is the value to bind to the parameter.
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@@ -217,15 +219,17 @@ api {} {
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} {
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Return the name of the n-th parameter in the precompiled statement.
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Parameters of the form ":AAA" or "@AAA" or "\$VVV" have a name which is the
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string ":AAA" or "\$VVV". In other words, the initial ":" or "$" or "@"
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string ":AAA" or "@AAA" or "\$VVV".
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In other words, the initial ":" or "$" or "@"
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is included as part of the name.
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Parameters of the form "?" have no name.
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Parameters of the form "?" or "?NNN" have no name.
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The first bound parameter has an index of 1, not 0.
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If the value n is out of range or if the n-th parameter is nameless,
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then NULL is returned. The returned string is always in the
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UTF-8 encoding.
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UTF-8 encoding even if the named parameter was originally specified
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as UTF-16 in sqlite3_prepare16_v2().
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}
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api {} {
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@@ -391,6 +395,15 @@ int sqlite3_column_type(sqlite3_stmt*, int iCol);
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If the SQL statement is not currently point to a valid row, or if the
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the column index is out of range, the result is undefined.
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The sqlite3_column_type() routine returns the initial data type
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of the result column. The returned value is one of SQLITE_INTEGER,
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SQLITE_FLOAT, SQLITE_TEXT, SQLITE_BLOB, or SQLITE_NULL. The value
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returned by sqlite3_column_type() is only meaningful if no type
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conversions have occurred as described below. After a type conversion,
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the value returned by sqlite3_column_type() is undefined. Future
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versions of SQLite may change the behavior of sqlite3_column_type()
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following a type conversion.
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If the result is a BLOB or UTF-8 string then the sqlite3_column_bytes()
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routine returns the number of bytes in that BLOB or string.
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If the result is a UTF-16 string, then sqlite3_column_bytes() converts
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