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We have seen one too many reports of people trying to use 9.1 extension files in the old-fashioned way of sourcing them in psql. Not only does that usually not work (due to failure to substitute for MODULE_PATHNAME and/or @extschema@), but if it did work they'd get a collection of loose objects not an extension. To prevent this, insert an \echo ... \quit line that prints a suitable error message into each extension script file, and teach commands/extension.c to ignore lines starting with \echo. That should not only prevent any adverse consequences of loading a script file the wrong way, but make it crystal clear to users that they need to do it differently now. Tom Lane, following an idea of Andrew Dunstan's. Back-patch into 9.1 ... there is not going to be much value in this if we wait till 9.2.
396 lines
7.5 KiB
SQL
396 lines
7.5 KiB
SQL
/* contrib/seg/seg--1.0.sql */
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-- complain if script is sourced in psql, rather than via CREATE EXTENSION
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\echo Use "CREATE EXTENSION seg" to load this file. \quit
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-- Create the user-defined type for 1-D floating point intervals (seg)
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CREATE FUNCTION seg_in(cstring)
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RETURNS seg
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION seg_out(seg)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE TYPE seg (
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INTERNALLENGTH = 12,
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INPUT = seg_in,
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OUTPUT = seg_out
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);
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COMMENT ON TYPE seg IS
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'floating point interval ''FLOAT .. FLOAT'', ''.. FLOAT'', ''FLOAT ..'' or ''FLOAT''';
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--
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-- External C-functions for R-tree methods
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--
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-- Left/Right methods
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CREATE FUNCTION seg_over_left(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_over_left(seg, seg) IS
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'overlaps or is left of';
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CREATE FUNCTION seg_over_right(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_over_right(seg, seg) IS
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'overlaps or is right of';
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CREATE FUNCTION seg_left(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_left(seg, seg) IS
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'is left of';
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CREATE FUNCTION seg_right(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_right(seg, seg) IS
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'is right of';
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-- Scalar comparison methods
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CREATE FUNCTION seg_lt(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_lt(seg, seg) IS
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'less than';
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CREATE FUNCTION seg_le(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_le(seg, seg) IS
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'less than or equal';
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CREATE FUNCTION seg_gt(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_gt(seg, seg) IS
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'greater than';
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CREATE FUNCTION seg_ge(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_ge(seg, seg) IS
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'greater than or equal';
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CREATE FUNCTION seg_contains(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_contains(seg, seg) IS
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'contains';
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CREATE FUNCTION seg_contained(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_contained(seg, seg) IS
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'contained in';
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CREATE FUNCTION seg_overlap(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_overlap(seg, seg) IS
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'overlaps';
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CREATE FUNCTION seg_same(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_same(seg, seg) IS
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'same as';
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CREATE FUNCTION seg_different(seg, seg)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_different(seg, seg) IS
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'different';
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-- support routines for indexing
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CREATE FUNCTION seg_cmp(seg, seg)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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COMMENT ON FUNCTION seg_cmp(seg, seg) IS 'btree comparison function';
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CREATE FUNCTION seg_union(seg, seg)
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RETURNS seg
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION seg_inter(seg, seg)
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RETURNS seg
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION seg_size(seg)
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RETURNS float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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-- miscellaneous
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CREATE FUNCTION seg_center(seg)
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RETURNS float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION seg_upper(seg)
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RETURNS float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION seg_lower(seg)
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RETURNS float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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--
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-- OPERATORS
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--
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CREATE OPERATOR < (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_lt,
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COMMUTATOR = '>',
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NEGATOR = '>=',
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RESTRICT = scalarltsel,
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JOIN = scalarltjoinsel
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);
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CREATE OPERATOR <= (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_le,
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COMMUTATOR = '>=',
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NEGATOR = '>',
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RESTRICT = scalarltsel,
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JOIN = scalarltjoinsel
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);
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CREATE OPERATOR > (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_gt,
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COMMUTATOR = '<',
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NEGATOR = '<=',
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RESTRICT = scalargtsel,
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JOIN = scalargtjoinsel
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);
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CREATE OPERATOR >= (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_ge,
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COMMUTATOR = '<=',
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NEGATOR = '<',
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RESTRICT = scalargtsel,
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JOIN = scalargtjoinsel
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);
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CREATE OPERATOR << (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_left,
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COMMUTATOR = '>>',
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RESTRICT = positionsel,
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JOIN = positionjoinsel
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);
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CREATE OPERATOR &< (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_over_left,
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RESTRICT = positionsel,
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JOIN = positionjoinsel
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);
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CREATE OPERATOR && (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_overlap,
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COMMUTATOR = '&&',
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RESTRICT = areasel,
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JOIN = areajoinsel
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);
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CREATE OPERATOR &> (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_over_right,
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RESTRICT = positionsel,
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JOIN = positionjoinsel
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);
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CREATE OPERATOR >> (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_right,
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COMMUTATOR = '<<',
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RESTRICT = positionsel,
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JOIN = positionjoinsel
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);
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CREATE OPERATOR = (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_same,
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COMMUTATOR = '=',
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NEGATOR = '<>',
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RESTRICT = eqsel,
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JOIN = eqjoinsel,
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MERGES
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);
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CREATE OPERATOR <> (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_different,
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COMMUTATOR = '<>',
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NEGATOR = '=',
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RESTRICT = neqsel,
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JOIN = neqjoinsel
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);
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CREATE OPERATOR @> (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_contains,
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COMMUTATOR = '<@',
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RESTRICT = contsel,
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JOIN = contjoinsel
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);
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CREATE OPERATOR <@ (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_contained,
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COMMUTATOR = '@>',
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RESTRICT = contsel,
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JOIN = contjoinsel
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);
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-- obsolete:
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CREATE OPERATOR @ (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_contains,
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COMMUTATOR = '~',
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RESTRICT = contsel,
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JOIN = contjoinsel
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);
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CREATE OPERATOR ~ (
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LEFTARG = seg,
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RIGHTARG = seg,
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PROCEDURE = seg_contained,
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COMMUTATOR = '@',
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RESTRICT = contsel,
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JOIN = contjoinsel
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);
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-- define the GiST support methods
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CREATE FUNCTION gseg_consistent(internal,seg,int,oid,internal)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gseg_compress(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gseg_decompress(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gseg_penalty(internal,internal,internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gseg_picksplit(internal, internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gseg_union(internal, internal)
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RETURNS seg
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gseg_same(seg, seg, internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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-- Create the operator classes for indexing
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CREATE OPERATOR CLASS seg_ops
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DEFAULT FOR TYPE seg USING btree AS
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OPERATOR 1 < ,
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OPERATOR 2 <= ,
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OPERATOR 3 = ,
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OPERATOR 4 >= ,
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OPERATOR 5 > ,
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FUNCTION 1 seg_cmp(seg, seg);
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CREATE OPERATOR CLASS gist_seg_ops
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DEFAULT FOR TYPE seg USING gist
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AS
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OPERATOR 1 << ,
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OPERATOR 2 &< ,
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OPERATOR 3 && ,
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OPERATOR 4 &> ,
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OPERATOR 5 >> ,
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OPERATOR 6 = ,
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OPERATOR 7 @> ,
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OPERATOR 8 <@ ,
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OPERATOR 13 @ ,
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OPERATOR 14 ~ ,
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FUNCTION 1 gseg_consistent (internal, seg, int, oid, internal),
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FUNCTION 2 gseg_union (internal, internal),
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FUNCTION 3 gseg_compress (internal),
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FUNCTION 4 gseg_decompress (internal),
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FUNCTION 5 gseg_penalty (internal, internal, internal),
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FUNCTION 6 gseg_picksplit (internal, internal),
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FUNCTION 7 gseg_same (seg, seg, internal);
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