.a *+? .b. See examples below
ddeeply merge arrays
?only merge existing fields
nonly merge new fields
cclobber custom tags
eval-allto ensure all documents are loaded into memory.
yqmerge is naive. It merges maps when they match the key name, and arrays are merged either by appending them together, or merging the entries by their position in the array.
coption to clobber custom tags. Note that the second tag is now used