I grabbed all transactions from terra.msg_events by looking at an example transaction for astroport and one for terraswap (terraswap and loop execute transactions the same way). I pulled what I wanted from the from_contract section of the messages. I did a CASE to assign pool names, but you could also join on terra.labels.

Astroport: https://finder.terra.money/mainnet/tx/60D06249B83815F1CA9AE1280716C034E8E1F426529334753C778447484D286C Terraswap: https://finder.terra.money/mainnet/tx/95cff69f0e2a5225b39793e79ab31363046b7ff67759db229b29c22634717195