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Diffstat (limited to 'doc/src/sgml/man3/SPI_register_trigger_data.3')
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1 files changed, 81 insertions, 0 deletions
diff --git a/doc/src/sgml/man3/SPI_register_trigger_data.3 b/doc/src/sgml/man3/SPI_register_trigger_data.3 new file mode 100644 index 0000000..99f5b36 --- /dev/null +++ b/doc/src/sgml/man3/SPI_register_trigger_data.3 @@ -0,0 +1,81 @@ +'\" t +.\" Title: SPI_register_trigger_data +.\" Author: The PostgreSQL Global Development Group +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 2023 +.\" Manual: PostgreSQL 15.5 Documentation +.\" Source: PostgreSQL 15.5 +.\" Language: English +.\" +.TH "SPI_REGISTER_TRIGGER_DATA" "3" "2023" "PostgreSQL 15.5" "PostgreSQL 15.5 Documentation" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +SPI_register_trigger_data \- make ephemeral trigger data available in SPI queries +.SH "SYNOPSIS" +.sp +.nf +int SPI_register_trigger_data(TriggerData *\fItdata\fR) +.fi +.SH "DESCRIPTION" +.PP +\fBSPI_register_trigger_data\fR +makes any ephemeral relations captured by a trigger available to queries planned and executed through the current SPI connection\&. Currently, this means the transition tables captured by an +AFTER +trigger defined with a +REFERENCING OLD/NEW TABLE AS +\&.\&.\&. clause\&. This function should be called by a PL trigger handler function after connecting\&. +.SH "ARGUMENTS" +.PP +TriggerData *\fItdata\fR +.RS 4 +the +TriggerData +object passed to a trigger handler function as +fcinfo\->context +.RE +.SH "RETURN VALUE" +.PP +If the execution of the command was successful then the following (nonnegative) value will be returned: +.PP +SPI_OK_TD_REGISTER +.RS 4 +if the captured trigger data (if any) has been successfully registered +.RE +.PP +On error, one of the following negative values is returned: +.PP +SPI_ERROR_ARGUMENT +.RS 4 +if +\fItdata\fR +is +NULL +.RE +.PP +SPI_ERROR_UNCONNECTED +.RS 4 +if called from an unconnected C function +.RE +.PP +SPI_ERROR_REL_DUPLICATE +.RS 4 +if the name of any trigger data transient relation is already registered for this connection +.RE |