1SPI_CURSOR_OPEN_WITH_ARGSP(o3s)tgreSQL 9.2.24 DocumentaStPiIo_nCURSOR_OPEN_WITH_ARGS(3)
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6 SPI_cursor_open_with_args - set up a cursor using a query and
7 parameters
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10 Portal SPI_cursor_open_with_args(const char *name,
11 const char *command,
12 int nargs, Oid *argtypes,
13 Datum *values, const char *nulls,
14 bool read_only, int cursorOptions)
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17 SPI_cursor_open_with_args sets up a cursor (internally, a portal) that
18 will execute the specified query. Most of the parameters have the same
19 meanings as the corresponding parameters to SPI_prepare_cursor and
20 SPI_cursor_open.
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22 For one-time query execution, this function should be preferred over
23 SPI_prepare_cursor followed by SPI_cursor_open. If the same command is
24 to be executed with many different parameters, either method might be
25 faster, depending on the cost of re-planning versus the benefit of
26 custom plans.
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28 The passed-in parameter data will be copied into the cursor's portal,
29 so it can be freed while the cursor still exists.
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32 const char * name
33 name for portal, or NULL to let the system select a name
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35 const char * command
36 command string
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38 int nargs
39 number of input parameters ($1, $2, etc.)
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41 Oid * argtypes
42 an array containing the OIDs of the data types of the parameters
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44 Datum * values
45 an array of actual parameter values
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47 const char * nulls
48 an array describing which parameters are null
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50 If nulls is NULL then SPI_cursor_open_with_args assumes that no
51 parameters are null.
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53 bool read_only
54 true for read-only execution
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56 int cursorOptions
57 integer bit mask of cursor options; zero produces default behavior
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60 Pointer to portal containing the cursor. Note there is no error return
61 convention; any error will be reported via elog.
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65PostgreSQL 9.2.24 2017-11-06 SPI_CURSOR_OPEN_WITH_ARGS(3)