@@ -156,19 +156,19 @@ POLYGON((1 0,0.950932325672582 0.001204543794827595,0.9019828596704393 0.0048152
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156
create table t1(geom geometrycollection);
157
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insert into t1 values (geomfromtext('POLYGON((0 0, 10 10, 0 8, 0 0))'));
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insert into t1 values (geomfromtext('POLYGON((1 1, 10 10, 0 8, 1 1))'));
159
- select astext(geom), area(geom),area(ST_buffer(geom,2)) from t1;
160
- astext(geom) area(geom) area(ST_buffer(geom,2))
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- POLYGON((0 0,10 10,0 8,0 0)) 40 117.2416763959153
162
- POLYGON((1 1,10 10,0 8,1 1)) 36 108.55539589266459
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- select astext( ST_buffer(geom,2)) from t1;
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- astext( ST_buffer(geom,2))
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- POLYGON((0 -2,-0.09813534865483604 -1.9975909124103448,-0.1960342806591212 -1.9903694533443936,-0.2934609489107236 -1.978353019929562,-0.3901806440322566 -1.9615705608064609,-0.4859603598065278 -1.940062506389088,-0.5805693545089246 -1.9138806714644179,-0.6737797067844402 -1.8830881303660416,-0.7653668647301796 -1.8477590650225735,-0.8551101868605642 -1.8079785862468867,-0.9427934736519952 -1.7638425286967099,-1.0282054883864433 -1.7154572200005442,-1.1111404660392044 -1.6629392246050905,-1.1913986089848667 -1.6064150629612897,-1.268786568327291 -1.546020906725474,-1.3431179096940367 -1.4819022507099182,-1.414213562373095 -1.414213562373095,-1.4819022507099182 -1.3431179096940367,-1.546020906725474 -1.268786568327291,-1.6064150629612897 -1.1913986089848667,-1.6629392246050905 -1.1111404660392044,-1.7154572200005442 -1.0282054883864433,-1.7638425286967099 -0.9427934736519952,-1.8079785862468867 -0.8551101868605642,-1.8477590650225735 -0.7653668647301796,-1.8830881303660416 -0.6737797067844402,-1.9138806714644179 -0.5805693545089246,-1.940062506389088 -0.4859603598065278,-1.9615705608064609 -0.3901806440322566,-1.978353019929562 -0.2934609489107236,-1.9903694533443936 -0.1960342806591212,-1.9975909124103448 -0.09813534865483604,-2 0,-2 8,-1.9976924709932495 8.096045777298562,-1.9905734200023315 8.193952209526529,-1.978658903288988 8.291391393893539,-1.9619776239675701 8.388128590869789,-1.940569768701071 8.483930752074583,-1.9144869108879337 8.578567081710304,-1.8837918864172196 8.67180959256969,-1.848558642291444 8.763433655277009,-1.8088720584817741 8.853218539439872,-1.7648277434447421 8.940947945408109,-1.716531803793098 9.02641052535855,-1.6641005886756872 9.109400392450459,-1.6076604094821603 9.189717616824955,-1.5473472355477698 9.267168707253568,-1.483306366591334 9.341567077275533,-1.415692082675486 9.412733494700944,-1.3446672725324915 9.480496513396783,-1.2704030411510234 9.54469288631567,-1.1930782975692584 9.605167958772302,-1.1128793238673322 9.661776041020147,-1.0299993263974934 9.714380759230782,-0.9446379703330767 9.762855384030411,-0.8570008986576141 9.807083135802014,-0.7672992367528719 9.846957466017683,-0.6757490837793165 9.882382313923348,-0.5825709920743072 9.913272337957553,-0.4879894358221987 9.939553121346753,-0.3922322702763681 9.96116135138184,9.607767729723632 11.96116135138184,9.609819355967744 11.96157056080646,9.706539051089276 11.978353019929562,9.803965719340878 11.990369453344393,9.901864651345164 11.997590912410345,10 12,10.098135348654836 11.997590912410345,10.196034280659122 11.990369453344393,10.293460948910724 11.978353019929562,10.390180644032256 11.96157056080646,10.485960359806528 11.940062506389088,10.580569354508924 11.913880671464417,10.67377970678444 11.88308813036604,10.76536686473018 11.847759065022574,10.855110186860564 11.807978586246886,10.942793473651996 11.76384252869671,11.028205488386444 11.715457220000545,11.111140466039204 11.66293922460509,11.191398608984866 11.60641506296129,11.268786568327291 11.546020906725474,11.343117909694037 11.481902250709918,11.414213562373096 11.414213562373096,11.481902250709918 11.343117909694037,11.546020906725474 11.268786568327291,11.60641506296129 11.191398608984866,11.66293922460509 11.111140466039204,11.715457220000545 11.028205488386444,11.76384252869671 10.942793473651996,11.807978586246886 10.855110186860564,11.847759065022574 10.76536686473018,11.88308813036604 10.67377970678444,11.913880671464417 10.580569354508924,11.940062506389088 10.485960359806528,11.96157056080646 10.390180644032256,11.978353019929562 10.293460948910724,11.990369453344393 10.196034280659122,11.997590912410345 10.098135348654836,12 10,11.997590912410345 9.901864651345164,11.990369453344393 9.803965719340878,11.978353019929562 9.706539051089276,11.96157056080646 9.609819355967744,11.940062506389088 9.514039640193472,11.913880671464417 9.419430645491076,11.88308813036604 9.32622029321556,11.847759065022574 9.23463313526982,11.807978586246886 9.144889813139436,11.76384252869671 9.057206526348004,11.715457220000545 8.971794511613556,11.66293922460509 8.888859533960796,11.60641506296129 8.808601391015134,11.546020906725474 8.731213431672709,11.481902250709918 8.656882090305963,11.414213562373096 8.585786437626904,1.414213562373095 -1.414213562373095,1.3431179096940367 -1.4819022507099182,1.268786568327291 -1.546020906725474,1.1913986089848667 -1.6064150629612897,1.1111404660392044 -1.6629392246050905,1.0282054883864433 -1.7154572200005442,0.9427934736519952 -1.7638425286967099,0.8551101868605642 -1.8079785862468867,0.7653668647301796 -1.8477590650225735,0.6737797067844402 -1.8830881303660416,0.5805693545089246 -1.9138806714644179,0.4859603598065278 -1.940062506389088,0.3901806440322566 -1.9615705608064609,0.2934609489107236 -1.978353019929562,0.1960342806591212 -1.9903694533443936,0.09813534865483604 -1.9975909124103448,0 -2))
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- POLYGON((0.9892698494111194 -0.9999712157599518,0.8911488380683092 -0.9970356593075951,0.7932900587088283 -0.9892890690323013,0.6959292617035704 -0.9767501071485654,0.5993009977403192 -0.959448981113848,0.5036380527705995 -0.9374273708561667,0.40917088720792716 -0.9107383283634973,0.3161270807284893 -0.8794461498768888,0.2247307840117696 -0.843626220995187,0.13520217874192864 -0.8033648350645226,0.04775694717084156 -0.7587589852900836,-0.03739424747933939 -0.7099161310709878,-0.12004626852233802 -0.6569539391211774,-0.19999999999999996 -0.5999999999999999,-0.27706282637007584 -0.5391915207353741,-0.35104909653393324 -0.47467499428004234,-0.42178057108631606 -0.40660584659721555,-0.4890868517096818 -0.3351480622258147,-0.5528057916786753 -0.26047378922735365,-0.6127838864857904 -0.18276292446617926,-0.6688766436471771 -0.10220268022216916,-0.7209489307976877 -0.018987133179951154,-0.7688753012365837 0.06668324311882912,-0.8125402961396226 0.15460206123382925,-0.8518387227094812 0.2445575170314307,-0.8866759075944177 0.33633289993945015,-0.9169679249646674 0.4297071150218881,-0.9426417986971172 0.5244552156159955,-0.9636356781811806 0.6203489452484875,-0.9798989873223332 0.717157287525381,-1.9798989873223332 7.717157287525381,-1.990163308912474 7.8018838627003015,-1.9974871681520578 7.899775187364235,-1.9999989058443504 7.997907962380466,-1.9976924709932495 8.096045777298562,-1.9905734200023315 8.193952209526529,-1.978658903288988 8.291391393893539,-1.9619776239675701 8.388128590869789,-1.940569768701071 8.483930752074583,-1.9144869108879337 8.578567081710304,-1.8837918864172196 8.67180959256969,-1.848558642291444 8.763433655277009,-1.8088720584817741 8.853218539439872,-1.7648277434447421 8.940947945408109,-1.716531803793098 9.02641052535855,-1.6641005886756872 9.109400392450459,-1.6076604094821603 9.189717616824955,-1.5473472355477698 9.267168707253568,-1.483306366591334 9.341567077275533,-1.415692082675486 9.412733494700944,-1.3446672725324915 9.480496513396783,-1.2704030411510234 9.54469288631567,-1.1930782975692584 9.605167958772302,-1.1128793238673322 9.661776041020147,-1.0299993263974934 9.714380759230782,-0.9446379703330767 9.762855384030411,-0.8570008986576141 9.807083135802014,-0.7672992367528719 9.846957466017683,-0.6757490837793165 9.882382313923348,-0.5825709920743072 9.913272337957553,-0.4879894358221987 9.939553121346753,-0.3922322702763681 9.96116135138184,9.607767729723632 11.96116135138184,9.609819355967744 11.96157056080646,9.706539051089276 11.978353019929562,9.803965719340878 11.990369453344393,9.901864651345164 11.997590912410345,10 12,10.098135348654836 11.997590912410345,10.196034280659122 11.990369453344393,10.293460948910724 11.978353019929562,10.390180644032256 11.96157056080646,10.485960359806528 11.940062506389088,10.580569354508924 11.913880671464417,10.67377970678444 11.88308813036604,10.76536686473018 11.847759065022574,10.855110186860564 11.807978586246886,10.942793473651996 11.76384252869671,11.028205488386444 11.715457220000545,11.111140466039204 11.66293922460509,11.191398608984866 11.60641506296129,11.268786568327291 11.546020906725474,11.343117909694037 11.481902250709918,11.414213562373096 11.414213562373096,11.481902250709918 11.343117909694037,11.546020906725474 11.268786568327291,11.60641506296129 11.191398608984866,11.66293922460509 11.111140466039204,11.715457220000545 11.028205488386444,11.76384252869671 10.942793473651996,11.807978586246886 10.855110186860564,11.847759065022574 10.76536686473018,11.88308813036604 10.67377970678444,11.913880671464417 10.580569354508924,11.940062506389088 10.485960359806528,11.96157056080646 10.390180644032256,11.978353019929562 10.293460948910724,11.990369453344393 10.196034280659122,11.997590912410345 10.098135348654836,12 10,11.997590912410345 9.901864651345164,11.990369453344393 9.803965719340878,11.978353019929562 9.706539051089276,11.96157056080646 9.609819355967744,11.940062506389088 9.514039640193472,11.913880671464417 9.419430645491076,11.88308813036604 9.32622029321556,11.847759065022574 9.23463313526982,11.807978586246886 9.144889813139436,11.76384252869671 9.057206526348004,11.715457220000545 8.971794511613556,11.66293922460509 8.888859533960796,11.60641506296129 8.808601391015134,11.546020906725474 8.731213431672709,11.481902250709918 8.656882090305963,11.414213562373096 8.585786437626904,2.414213562373095 -0.4142135623730949,2.4066058465972153 -0.42178057108631606,2.335148062225815 -0.4890868517096818,2.260473789227354 -0.5528057916786753,2.1827629244661795 -0.6127838864857904,2.1022026802221694 -0.6688766436471771,2.018987133179951 -0.7209489307976877,1.9333167568811709 -0.7688753012365837,1.8453979387661708 -0.8125402961396226,1.7554424829685693 -0.8518387227094812,1.6636671000605499 -0.8866759075944177,1.570292884978112 -0.9169679249646674,1.4755447843840046 -0.9426417986971172,1.3796510547515126 -0.9636356781811806,1.282842712474619 -0.9798989873223332,1.1853529773292786 -0.9913925463843567,1.0874167106265484 -0.9980886663767536,0.9892698494111194 -0.9999712157599518))
159
+ select astext(geom), area(geom),round( area(ST_buffer(geom,2)), 7 ) from t1;
160
+ astext(geom) area(geom) round( area(ST_buffer(geom,2)), 7 )
161
+ POLYGON((0 0,10 10,0 8,0 0)) 40 117.2416764
162
+ POLYGON((1 1,10 10,0 8,1 1)) 36 108.5553959
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+ select ST_NUMPOINTS(ST_EXTERIORRING( ST_buffer(geom,2) )) from t1;
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+ ST_NUMPOINTS(ST_EXTERIORRING( ST_buffer(geom,2) ))
165
+ 133
166
+ 134
167
167
set @geom=geomfromtext('LINESTRING(2 1, 4 2, 2 3, 2 5)');
168
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set @buff=ST_buffer(@geom,1);
169
- select astext( @buff);
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- astext( @buff)
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- POLYGON((2.0218594008566466 0.00023894525032219782,1.9727771204112932 0.00037061126290494073,1.9237604222673113 0.002910472030148492,1.8749273919438858 0.0078524088049996,1.8263956724883341 0.015184516028905026,1.7782821810637013 0.024889130013345362,1.7307028272850733 0.03694287149320841,1.683772233983162 0.05131670194948634,1.6376034610678665 0.06797599356561079,1.592307733157046 0.08688061264889702,1.5479941716266756 0.10798501631612445,1.504769531727891 0.13123836221033125,1.46273794540424 0.1565846309845056,1.4220006704287085 0.18396276125709976,1.382655846464876 0.21330679671424568,1.3447982586398712 0.24454604500429356,1.3085191091986976 0.2776052480418776,1.2739057977900368 0.3124047633112361,1.241041710912841 0.34886075573200737,1.2100060210309511 0.38688539962528223,1.1808734958396978 0.4263870902933562,1.1537143181439746 0.46727066470347056,1.1285939167817136 0.5094376307438929,1.1055728090000843 0.5527864045000421,1.0847064546641425 0.5972125549790352,1.0660451226491614 0.6426090556930975,1.0496337697385036 0.6888665424957445,1.0355119323187965 0.7358735770495916,1.0237136311333106 0.7835169152910685,1.0142672893230111 0.8316817802452878,1.0071956639527206 0.8802521385338314,1.0025157911873577 0.9291109799093207,1.0002389452503222 0.9781405991433534,1.000370611262905 1.0272228795887068,1.0029104720301485 1.0762395777326887,1.0078524088049996 1.1250726080561142,1.015184516028905 1.1736043275116659,1.0248891300133454 1.2217178189362987,1.0369428714932085 1.2692971727149267,1.0513167019494865 1.316227766016838,1.0679759935656108 1.3623965389321335,1.086880612648897 1.407692266842954,1.1079850163161244 1.4520058283733244,1.1312383622103312 1.495230468272109,1.1565846309845056 1.53726205459576,1.1839627612570998 1.5779993295712915,1.2133067967142457 1.617344153535124,1.2445460450042936 1.6552017413601288,1.2776052480418776 1.6914808908013024,1.3124047633112361 1.7260942022099632,1.3488607557320074 1.758958289087159,1.3868853996252821 1.7899939789690489,1.4263870902933562 1.8191265041603022,1.4672706647034706 1.8462856818560254,1.5094376307438928 1.8714060832182864,1.5527864045000421 1.8944271909999157,1.7639320225002106 2,1.5527864045000421 2.1055728090000843,1.5286032631740025 2.118078735651645,1.4858972558067784 2.1422713899997277,1.4444297669803978 2.1685303876974547,1.4043006955075668 2.196792468519355,1.3656067158363545 2.226989546637263,1.3284410451529816 2.259048874645041,1.2928932188134525 2.2928932188134525,1.2590488746450408 2.3284410451529816,1.2269895466372631 2.3656067158363543,1.1967924685193552 2.4043006955075668,1.1685303876974547 2.444429766980398,1.1422713899997279 2.4858972558067784,1.118078735651645 2.5286032631740025,1.0960107068765566 2.572444906569718,1.0761204674887133 2.6173165676349104,1.0584559348169793 2.66311014660778,1.043059664267791 2.709715322745538,1.029968746805456 2.757019820096736,1.0192147195967696 2.8049096779838716,1.0108234900352189 2.853269525544638,1.0048152733278033 2.9019828596704396,1.0012045437948276 2.950932325672582,1 3,1 5,1.0048152733278033 5.098017140329561,1.0108234900352189 5.146730474455362,1.0192147195967696 5.195090322016128,1.029968746805456 5.242980179903264,1.043059664267791 5.290284677254462,1.0584559348169793 5.33688985339222,1.0761204674887133 5.38268343236509,1.0960107068765566 5.427555093430282,1.118078735651645 5.471396736825998,1.1422713899997279 5.514102744193222,1.1685303876974547 5.555570233019602,1.1967924685193552 5.595699304492434,1.2269895466372631 5.634393284163646,1.2590488746450408 5.671558954847018,1.2928932188134525 5.707106781186548,1.3284410451529816 5.740951125354959,1.3656067158363545 5.773010453362737,1.4043006955075668 5.803207531480645,1.4444297669803978 5.831469612302545,1.4858972558067784 5.857728610000272,1.5286032631740025 5.881921264348355,1.572444906569718 5.903989293123443,1.6173165676349102 5.923879532511287,1.6631101466077798 5.941544065183021,1.7097153227455377 5.956940335732209,1.7570198200967362 5.970031253194544,1.8049096779838716 5.98078528040323,1.853269525544638 5.989176509964781,1.9019828596704393 5.995184726672197,1.950932325672582 5.998795456205173,2 6,2.049067674327418 5.998795456205173,2.0980171403295604 5.995184726672197,2.146730474455362 5.989176509964781,2.1950903220161284 5.98078528040323,2.242980179903264 5.970031253194544,2.290284677254462 5.956940335732209,2.33688985339222 5.941544065183021,2.3826834323650896 5.923879532511287,2.427555093430282 5.903989293123443,2.4713967368259975 5.881921264348355,2.5141027441932216 5.857728610000272,2.555570233019602 5.831469612302545,2.5956993044924332 5.803207531480645,2.6343932841636457 5.773010453362737,2.6715589548470184 5.740951125354959,2.7071067811865475 5.707106781186548,2.740951125354959 5.671558954847018,2.773010453362737 5.634393284163646,2.803207531480645 5.595699304492434,2.8314696123025453 5.555570233019602,2.8577286100002723 5.514102744193222,2.881921264348355 5.471396736825998,2.9039892931234434 5.427555093430282,2.923879532511287 5.38268343236509,2.9415440651830207 5.33688985339222,2.956940335732209 5.290284677254462,2.970031253194544 5.242980179903264,2.9807852804032304 5.195090322016128,2.989176509964781 5.146730474455362,2.9951847266721967 5.098017140329561,2.9987954562051726 5.049067674327418,3 5,3 3.618033988749895,4.447213595499958 2.8944271909999157,4.452005828373324 2.8920149836838753,4.4952304682721085 2.8687616377896688,4.53726205459576 2.8434153690154944,4.577999329571291 2.8160372387429002,4.617344153535124 2.786693203285754,4.655201741360129 2.7554539549957067,4.691480890801302 2.7223947519581224,4.726094202209963 2.6875952366887637,4.758958289087159 2.6511392442679926,4.789993978969049 2.613114600374718,4.819126504160303 2.573612909706644,4.846285681856025 2.5327293352965294,4.871406083218286 2.490562369256107,4.894427190999916 2.447213595499958,4.9152935453358575 2.402787445020965,4.933954877350839 2.3573909443069025,4.950366230261497 2.3111334575042557,4.964488067681204 2.2641264229504086,4.976286368866689 2.2164830847089316,4.985732710676989 2.1683182197547124,4.992804336047279 2.1197478614661684,4.997484208812643 2.070889020090679,4.999761054749678 2.0218594008566466,4.999629388737095 1.9727771204112932,4.997089527969852 1.9237604222673113,4.992147591195001 1.8749273919438858,4.984815483971095 1.8263956724883341,4.975110869986654 1.7782821810637013,4.963057128506792 1.7307028272850733,4.948683298050514 1.683772233983162,4.932024006434389 1.6376034610678665,4.913119387351103 1.592307733157046,4.892014983683875 1.5479941716266756,4.868761637789669 1.504769531727891,4.843415369015494 1.46273794540424,4.816037238742901 1.4220006704287085,4.786693203285754 1.382655846464876,4.755453954995707 1.3447982586398712,4.722394751958122 1.3085191091986976,4.687595236688764 1.2739057977900368,4.651139244267993 1.241041710912841,4.613114600374717 1.2100060210309511,4.573612909706644 1.1808734958396978,4.53272933529653 1.1537143181439746,4.490562369256107 1.1285939167817136,4.447213595499958 1.1055728090000843,2.447213595499958 0.10557280900008414,2.3573909443069025 0.06604512264916129,2.3111334575042557 0.04963376973850353,2.2641264229504086 0.03551193231879646,2.2164830847089316 0.023713631133310598,2.1683182197547124 0.014267289323011023,2.1197478614661684 0.007195663952720532,2.070889020090679 0.0025157911873575634,2.0218594008566466 0.00023894525032219782))
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+ select ST_NUMPOINTS(ST_EXTERIORRING( @buff) );
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+ ST_NUMPOINTS(ST_EXTERIORRING( @buff) )
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+ 202
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DROP TABLE t1;
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select st_touches(geomfromtext('point(0 0)'), geomfromtext('point(1 1)'));
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st_touches(geomfromtext('point(0 0)'), geomfromtext('point(1 1)'))
@@ -459,9 +459,6 @@ ST_WITHIN( MULTIPOINTFROMTEXT(' MULTIPOINT( 2 9 , 2 9 , 4 9 , 9 1 ) ') , POLYGON
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SELECT ST_INTERSECTS( GeomFromText('MULTILINESTRING( ( 4030 3045 , 3149 2461 , 3004 3831 , 3775 2976 ) )') , GeomFromText('LINESTRING(3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29,3039.07 3175.05,3039.07 3175.05,3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29)') );
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ST_INTERSECTS( GeomFromText('MULTILINESTRING( ( 4030 3045 , 3149 2461 , 3004 3831 , 3775 2976 ) )') , GeomFromText('LINESTRING(3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29,3039.07 3175.05,3039.07 3175.05,3058.41 3187.91,3081.52 3153.19,
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1
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- select ASTEXT(ST_BUFFER(ST_GEOMCOLLFROMTEXT(' GEOMETRYCOLLECTION(LINESTRING(100 100, 31 10, 77 80), POLYGON((0 0,4 7,1 1,0 0)), POINT(20 20))'), -3));
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- ASTEXT(ST_BUFFER(ST_GEOMCOLLFROMTEXT(' GEOMETRYCOLLECTION(LINESTRING(100 100, 31 10, 77 80), POLYGON((0 0,4 7,1 1,0 0)), POINT(20 20))'), -3))
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- POLYGON((3.999999999999999 6.999999999999998,4 7,3.999999999999999 6.999999999999998))
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SELECT ST_NUMPOINTS(ST_EXTERIORRING(ST_BUFFER( POLYGONFROMTEXT( 'POLYGON( ( 0.0 -3.0,
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-2.910427500435995 0.727606875108998,
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-0.910427500435995 8.727606875108998,
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