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>SPI_is_cursor_plan</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN60744"
></A
><H2
>Name</H2
>SPI_is_cursor_plan -- return <TT
CLASS="SYMBOL"
>true</TT
> if a statement
prepared by <CODE
CLASS="FUNCTION"
>SPI_prepare</CODE
> can be used with
<CODE
CLASS="FUNCTION"
>SPI_cursor_open</CODE
></DIV
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CLASS="REFSYNOPSISDIV"
><A
NAME="AEN60752"
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><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>bool SPI_is_cursor_plan(SPIPlanPtr <TT
CLASS="PARAMETER"
>plan</TT
>)</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN60755"
></A
><H2
>Description</H2
><P
> <CODE
CLASS="FUNCTION"
>SPI_is_cursor_plan</CODE
> returns <TT
CLASS="SYMBOL"
>true</TT
>
if a statement prepared by <CODE
CLASS="FUNCTION"
>SPI_prepare</CODE
> can be passed
as an argument to <CODE
CLASS="FUNCTION"
>SPI_cursor_open</CODE
>, or
<TT
CLASS="SYMBOL"
>false</TT
> if that is not the case. The criteria are that the
<TT
CLASS="PARAMETER"
>plan</TT
> represents one single command and that this
command returns tuples to the caller; for example, <TT
CLASS="COMMAND"
>SELECT</TT
>
is allowed unless it contains an <TT
CLASS="LITERAL"
>INTO</TT
> clause, and
<TT
CLASS="COMMAND"
>UPDATE</TT
> is allowed only if it contains a <TT
CLASS="LITERAL"
>RETURNING</TT
>
clause.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN60768"
></A
><H2
>Arguments</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="LITERAL"
>SPIPlanPtr <TT
CLASS="PARAMETER"
>plan</TT
></TT
></DT
><DD
><P
> prepared statement (returned by <CODE
CLASS="FUNCTION"
>SPI_prepare</CODE
>)
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN60778"
></A
><H2
>Return Value</H2
><P
> <TT
CLASS="SYMBOL"
>true</TT
> or <TT
CLASS="SYMBOL"
>false</TT
> to indicate if the
<TT
CLASS="PARAMETER"
>plan</TT
> can produce a cursor or not, with
<TT
CLASS="VARNAME"
>SPI_result</TT
> set to zero.
If it is not possible to determine the answer (for example,
if the <TT
CLASS="PARAMETER"
>plan</TT
> is <TT
CLASS="SYMBOL"
>NULL</TT
> or invalid,
or if called when not connected to SPI), then
<TT
CLASS="VARNAME"
>SPI_result</TT
> is set to a suitable error code
and <TT
CLASS="SYMBOL"
>false</TT
> is returned.
</P
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