hasura/graphql-engine

Support for ST_Transform of PostGIS

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#3,229 创建于 2019年10月24日

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 (4 评论) (0 反应) (1 负责人)TypeScript (31,371 star) (2,787 fork)batch import
a/data/postgresc/servere/easygood first issuek/enhancementp/medium

描述

How can I use ST_Transform postgis function to transform ESPG from one to another projection? From this official document, the query looks like

ST_Transform(geometry g1, integer srid) example - ST_Transform(way, 4326)

贡献者指南

技术栈
typescriptsqlpostgresqlgraphql
领域
backenddatabase
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
3-5 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
needs investigation
前置要求
Basic knowledge of PostGISUnderstanding of Hasura GraphQL Engine
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
First, investigate if Hasura already supports ST Transform via custom SQL functions or if there is a configuration to enable PostGIS functions. Check the official Hasura documentation and GitHub issues for similar requests. Look at the Hasura source code in the repository, particularly in the server side handling of Postgres functions, to understand how to expose PostGIS functions through GraphQL. Comment on the issue to ask for clarification on expected usage and whether it should be a built in or custom function.
Support for ST_Transform of PostGIS · hasura/graphql-engine#3229 | Good First Issue