digoal
2020-03-26
PostgreSQL , pgNodeGraph
https://github.com/shenyuflying/pgNodeGraph
pgNodeGraph -- a postgreSQL node tree print tool
The output of postgreSQL node tree can be very long for the developer to investigate. pgNodeGraph tool can covert the output of the node tree into jpg formatted pictiure which is quite convenient for developing or debugging purposess.
将PG 优化器debug结果直接输出为图像:
set debug_print_parse = on;
set debug_print_plan = on;
set debug_pretty_print = on;
copy and paste the node tree in text form.
put it in node dir
run $ ./pgNodeGraph
$ ./pgNodeGraph
processing file sample.node ...done
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