PostgreSQL table

PostgreSQL|PostgreSQL

Create table with the geom column

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PostgreSQL 9.1 + PostGIS 1.5

PostgreSQL 9.4 + PostGIS 2.1

Alter table

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Add a column.

Alter a constraint.

Insert from a csv file and make the geom

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PostgreSQL 9.1 + PostGIS 1.5

PostgreSQL 9.4 + PostGIS 2.1

Export to a csv file

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Join

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