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+                Server Programming Interface (SPI)
+
+
+Overview
+========
+
+This folder contains results from an experiment by Joseph Xu
+to use the Postgres SPI. They are not currently used at all
+by the GNU Taler exchange.
+
+
+Dependencies
+============
+
+These are the direct dependencies for compiling the code:
+
+# apt-get install libpq-dev postgresql-server-dev-13
+# apt-get install libkrb5-dev
+# apt-get install libssl-dev
+
+
+Compilation
+===========
+
+$ make
+
+Loading functions
+=================
+
+# make install
+$ psql "$DB_NAME" < own_test.sql
+
+
+Calling functions
+==================
+
+$ psql -c "SELECT $FUNCTION_NAME($ARGS);" "$DB_NAME"