pipelinedb | High-performance time-series aggregation for PostgreSQL | Time Series Database library
kandi X-RAY | pipelinedb Summary
kandi X-RAY | pipelinedb Summary
PipelineDB is a PostgreSQL extension for high-performance time-series aggregation, designed to power realtime reporting and analytics applications. PipelineDB allows you to define continuous SQL queries that perpetually aggregate time-series data and store only the aggregate output in regular, queryable tables. You can think of this concept as extremely high-throughput, incrementally updated materialized views that never need to be manually refreshed. Raw time-series data is never written to disk, making PipelineDB extremely efficient for aggregation workloads. Continuous queries produce their own output streams, and thus can be chained together into arbitrary networks of continuous SQL.
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QUESTION
In pure C code in different projects that involve Postgresql server programming which I'm working with now, I keep encountering the function "IsA()" which returns a boolean and checks whether or not 2 instances of a struct belong to the same struct. I suppose.
One of them:
https://github.com/guotao0628/pipelinedb/blob/master/src/backend/executor/nodeBitmapAnd.c#L123
...ANSWER
Answered 2020-May-27 at 06:13IsA
is a macro which is defined in this header file in Postgresql
source code.
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