Installing re2c

To ensure that Greenplum can correctly parse SQL commands, install re2c.

1. Download the re2c source code.

   1 2	cd /opt/tool wget https://github.com/skvadrik/re2c/archive/refs/tags/2.0.3.zip

2. Decompress the package and install re2c.

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   unzip 2.0.3.zip cd re2c-2.0.3/ ./autogen.sh ./configure make make install