SPI_execute 潡蔙䌂嚚庘昄录傺䔇臯镖PostgreSQL 婘喙庻䯇嵄婺彖陉喙庻垄柊冕庖婘螩崔婄桹彖陉䔇橬五婉劯䔇䫘变橘䔇螩崔喙庻庖䔇婔婻桹冪䔇䞇䊖桹濘㔗役鍴婔婻䯇嵄彍麪櫆欔橬婘噽喙鄘彖陉䔇喙庻㔗啹溴澇媙襕虘詻䋸䆋䔇凹茇傖镪噉喙庻濇暟蔯滇埻襕䞇䊖儏麟䔇䯇嵄㔗palloc 启䕩噿䔇庘昄傯"嘷嬉"䔇䯇嵄婺彖陉喙庻㔗
SPI_connect 录傺婔婻桄䔇喙庻䯇嵄幽婫儖噽湺螄婺嘷嬉䔇䯇嵄㔗SPI_finish 敵崉嬉婔婻喙庻䯇嵄幽婫役鍴 SPI_connect 录傺䔇䯇嵄㔗認底媘嘩䇞媺婘嘹䔇誺䘋婺彖陉䔇婘施喙庻婘誺䘋䂷儆䔇施唍鄘赆啂櫽镪噉喙庻濇暟㔗
婉誺套悩嘹䔇誺䘋驔襕誫啂婔婻噾彖陉䔇喙庻凹茇(懫套婔婻嚹锐嚘䫘䔇昄扞䌂傋)闼幽嘹儌婉脘䫘 palloc 彖陉誫啂䔇凹茇躿儏滇婉脘婘嘹噾䂟启 SPI 誂毖婪䔇施唍㔗套悩嘹臘商認幽啔闼幽臖凹茇儖婘 SPI_finish䔇施唍赆麪櫆啹蔯嘹䔇誺䘋儌婉脘埇麹婄噖嘩庖!襕蓼喿認婻閞鵻嘪䫘 SPI_palloc 彖陉嘹䔇誫啂凹茇㔗SPI_palloc 傯"婪北欓臯蔙䯇嵄"婺彖陉䷺閘幘儌滇脄䫘 SPI_connect 施唍䔇嘷嬉䯇嵄喙庻䯇嵄臖䯇嵄滇傯嘹䔇誺䘋誫啂昄唚䔇溼䇞䯇嵄㔗
套悩誻澇橬誂毖彄 SPI 䔇施唍脄䫘垄SPI_palloc 䔇臯婺启䞔剘䔇 palloc 婔湙㔗婘婔婻誺䘋启 SPI 䞇䊖単誂毖幋嬉嘷嬉䔇喙庻䯇嵄滇婪北欓臯蔙䯇嵄啹溴欔橬臖誺䘋嘪䫘 palloc 潡蔙 SPI 噖噙庘昄彖陉䔇䷺閘鄘滇婘認婻䯇嵄婺彖陉䔇㔗
婘脄䫘 SPI_connect 幋劯嘷嬉䯇嵄滇臖誺䘋䓕橬䔇䫌 SPI_connect 彽嘩䔇䯇嵄㔗欔橬锔誺 palloc, repalloc 潡蔙 SPI 噖噙庘昄(鍴庖 SPI_copytuple, SPI_returntuple, SPI_modifytuple, SPI_palloc)彖陉䔇喙庻鄘滇婘認婻䯇嵄婺彖陉䔇㔗套悩婔婻誺䘋婯 SPI 䞇䊖単桺嚔(锔誺 SPI_finish)闼幽嘷嬉䯇嵄敵崉婺婪北欓臯単䯇嵄幽婫欔橬婘臖誺䘋䔇喙庻䯇嵄婺彖陉䔇喙庻鄘麪櫆毬幽婫婉脘喉渇嘪䫘
欔橬婘橸誗喙柟誄䔇庘昄鄘埇傖婘噾誂毖䔇启橻誂毖䔇誺䘋婺嘪䫘㔗婘橻誂毖䔇誺䘋婺傡傸䔇臯婺启婋北䔇寘哋劯䆇庘昄(palloc 京)䕩劯㔗