78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package scheduler
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import (
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"context"
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"database/sql"
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"golang.org/x/xerrors"
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)
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func setupTopMinerByBaseRewardSchema(ctx context.Context, db *sql.DB) error {
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select {
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case <-ctx.Done():
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return nil
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default:
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}
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tx, err := db.Begin()
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if err != nil {
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return err
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}
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if _, err := tx.Exec(`
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create materialized view if not exists top_miners_by_base_reward as
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with total_rewards_by_miner as (
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select
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b.miner,
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sum(bbr.base_block_reward * b.win_count) as total_reward
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from blocks b
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inner join base_block_rewards bbr on b.parentstateroot = bbr.state_root
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group by 1
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) select
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rank() over (order by total_reward desc),
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miner,
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total_reward
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from total_rewards_by_miner
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group by 2, 3;
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create index if not exists top_miners_by_base_reward_miner_index
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on top_miners_by_base_reward (miner);
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create materialized view if not exists top_miners_by_base_reward_max_height as
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select
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b."timestamp"as current_timestamp,
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max(b.height) as current_height
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from blocks b
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join base_block_rewards bbr on b.parentstateroot = bbr.state_root
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where bbr.base_block_reward is not null
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group by 1
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order by 1 desc
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limit 1;
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`); err != nil {
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return xerrors.Errorf("create top_miner_by_base_reward views: %w", err)
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}
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if err := tx.Commit(); err != nil {
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return xerrors.Errorf("committing top_miner_by_base_reward views; %w", err)
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}
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return nil
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}
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func refreshTopMinerByBaseReward(ctx context.Context, db *sql.DB) error {
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select {
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case <-ctx.Done():
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return nil
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default:
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}
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_, err := db.Exec("refresh materialized view top_miners_by_base_reward;")
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if err != nil {
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return xerrors.Errorf("refresh top_miners_by_base_reward: %w", err)
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}
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_, err = db.Exec("refresh materialized view top_miners_by_base_reward_max_height;")
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if err != nil {
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return xerrors.Errorf("refresh top_miners_by_base_reward_max_height: %w", err)
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}
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return nil
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}
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