Create PostgreSQL Tables
We will be using PostgreSQL tables to store the MoneroV data. We will need three tables that are named as follows.
xmv_keyimages
: Contains transaction rings and key imagesxmv_outputs
: Contains the transaction outputsxmr_xmv_keyimages
: Contains the rows ofxmr_keyimages
whose key images appear inxmv_keyimages
-
There is a file called
create_keyimages_table.sql
in thescripts/hardforks/monerov
directory with the following contents.CREATE TABLE xmv_keyimages ( image VARCHAR(64) NOT NULL, id SERIAL PRIMARY KEY, ring_amount BIGINT, ring_indices INTEGER[], block_height INTEGER, UNIQUE(image) )
-
Run the following command in the
scripts/hardforks/monerov
directory to create thexmv_keyimages
table.psql -U postgres -h 127.0.0.1 -W -f create_keyimages_table.sql
-
There is a file called
create_outputs_table.sql
in thescripts/hardforks/monerov
directory with the following contents.CREATE TABLE xmv_outputs ( image VARCHAR(64) NOT NULL, id SERIAL PRIMARY KEY, ring_amount BIGINT, ring_indices INTEGER[], block_height INTEGER, UNIQUE(image) )
-
Run the following command in the
scripts/hardforks/monerov
directory to create thexmv_outputs
table.psql -U postgres -h 127.0.0.1 -W -f create_outputs_table.sql
NOTE: Alternatively, you can create the
xmv_keyimages
andxmv_outputs
tables by running the script calledsql_table_creation.sh
in thescripts/hardforks/monerov
directory. You can run the commandsource sql_table_creation.sh
and enter the Postgres user password when prompted. -
Run the
populate_xmv_tables.py
script that is located in thescripts/hardforks/monerov
directory.python3 populate_xmv_tables.py
This script will query the MoneroV client and populate the
xmv_keyimages
andxmv_outputs
tables with non-coinbase transactions from block height 1,564,966 to block height 1,711,290. The MoneroV blockchain diverged from the main Monero chain at block height 1,564,966. -
Once the
populate_xmv_tables.py
script finishes running, you can stop the MoneroV client by pressing Ctrl-D in the CLI window. -
Create the
xmr_xmv_keyimages
table using the following steps. It will contain the subset ofxmr_keyimages
that corresponds to key images which have appeared both on the main Monero chain and the MoneroV chain.- Run the following commands to enter the
psql
shell.sudo su postgres psql
- Run the following query.
CREATE TABLE xmr_xmv_keyimages AS (SELECT xmrk.* FROM xmr_keyimages xmrk INNER JOIN xmv_keyimages xmvk ON xmrk.image=xmvk.image);
- Run the following commands to enter the